14 files changed, 6264 insertions, 1116 deletions

diff --git a/Makefile b/Makefile
index 4b1b6875..7b968e63 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,6 @@
 nanopb: proto
-	python libs/nanopb/generator/nanopb_generator.py -s max_size:100 -f openxc.options gen/cpp/openxc.pb
+	make -C libs/nanopb/generator/proto
+	python libs/nanopb/generator/nanopb_generator.py gen/cpp/openxc.pb -f openxc.options
 
 proto: openxc.proto
 	@mkdir -p gen/java
diff --git a/README.md b/README.md
index 5b43032b..1202c502 100644
--- a/README.md
+++ b/README.md
@@ -3,16 +3,22 @@
 This specification is a part of the [OpenXC platform][OpenXC].
 
 An OpenXC vehicle interface sends generic vehicle data over one or more output
-interfaces (e.g. USB or Bluetooth) as JSON objects, separated by newlines.
+interfaces (e.g. USB or Bluetooth) as JSON or Protocol Buffers (protobuf).
 
-There are two valid message types - single valued and evented.
+This document describes the JSON format and includes a high level description of
+each type and field. Each JSON message published by a VI is delimited with a
+`\0` character.
+
+The Protocol Buffer format is specified in the file `openxc.proto`. Those are
+published using the standard length-delimited method (any protobuf library
+should support this).
+
+## Single Valued
 
 There may not be a 1:1 relationship between input and output signals - i.e. raw
 engine timing CAN signals may be summarized in an "engine performance" metric on
 the abstract side of the interface.
 
-## Single Valued
-
 The expected format of a single valued message is:
 
     {"name": "steering_wheel_angle", "value": 45}
@@ -28,8 +34,7 @@ discrete pieces of information in the measurement.
 
 ## Raw CAN Message format
 
-An OpenXC vehicle interface may also output raw CAN messages. Each CAN message
-is sent as a JSON object, separated by newlines. The format of each object is:
+The format for a raw CAN message:
 
     {"bus": 1, "id": 1234, "value": "0x12345678"}
 
@@ -40,12 +45,179 @@ is sent as a JSON object, separated by newlines. The format of each object is:
 
 **data** - up to 8 bytes of data from the CAN message's payload, represented as
   a hexidecimal number in a string. Many JSON parser cannot handle 64-bit
-  integers, which is why we are not using a numerical data type.
+  integers, which is why we are not using a numerical data type. Each byte in
+  the string *must* be represented with 2 characters, e.g. `0x1` is `0x01` - the
+  complete string must have an even number of characters.
+
+## Diagnostic Messages
+
+### Requests
+
+A request to add or update a diagnostic request is sent to a vehicle interface
+with this command format:
+
+    { "command": "diagnostic_request",
+      "request": {
+          "bus": 1,
+          "id": 1234,
+          "mode": 1,
+          "pid": 5,
+          "payload": "0x1234",
+          "multiple_responses": false,
+          "factor": 1.0,
+          "offset": 0,
+          "frequency": 1,
+          "name": "my_pid"
+        }
+      }
+    }
+
+**bus** - the numerical identifier of the CAN bus where this request should be
+    sent, most likely 1 or 2 (for a vehicle interface with 2 CAN controllers).
+
+**id** - the CAN arbitration ID for the request.
+
+**mode** - the OBD-II mode of the request - 1 through 15 (1 through 9 are the
+    standardized modes).
+
+**pid** - (optional) the PID for the request, if applicable.
+
+**payload** - (optional) up to 7 bytes of data for the request's payload
+    represented as a hexidecimal number in a string. Many JSON parser cannot
+    handle 64-bit integers, which is why we are not using a numerical data type.
+    Each byte in the string *must* be represented with 2 characters, e.g. `0x1`
+    is `0x01` - the complete string must have an even number of characters.
+
+**name** - (optional, defaults to nothing) A human readable, string name for
+  this request. If provided, the response will have a `name` field (much like a
+  normal translated message) with this value in place of `bus`, `id`, `mode` and
+  `pid`.
+
+**multiple_responses** - (optional, false by default) if true, request will stay
+  active for a full 100ms, even after receiving a diagnostic response message.
+  This is useful for requests to the functional broadcast arbitration ID
+  (`0x7df`) when you need to get responses from multiple modules. It's possible
+  to set this to `true` for non-broadcast requests, but in practice you won't
+  see any additional responses after the first and it will just take up memory
+  in the VI for longer.
+
+**frequency** - (optional, defaults to 0) The frequency in Hz to send this
+    request. To send a single non-recurring request, set this to 0 or leave it
+    out.
+
+**decoded_type** - (optional, defaults to "obd2" if the request is a recognized
+OBD-II mode 1 request, otherwise "none") If specified, the valid values are
+`"none"` and `"obd2"`. If `obd2`, the payload will be decoded according to the
+OBD-II specification and returned in the `value` field. Set this to `none` to
+manually override the OBD-II decoding feature for a known PID.
+
+A diagnostic request's `bus`, `id`, `mode` and `pid` (or lack of a `pid`)
+combine to create a unique key to identify a recurring request. This means that
+you cannot simultaneosly have recurring requests at 2Hz and 5Hz for the same PID
+from the same ID.
+
+If you send a new `diagnostic_request` command with a `bus + id + mode + pid`
+key matching an existing recurring request, it will update it with whatever
+other parameters you've provided (e.g. it will change the frequency if you
+specify one).
+
+To cancel a recurring request, send a `diagnostic_request` command with the
+matching request information (i.e. the `bus`, `id`, `mode` and `pid`) but a
+frequency of 0.
+
+Non-recurring requests may have the same `bus+id+mode(+pid)` key as a recurring
+request, and they will co-exist without issue. As soon as a non-recurring
+request is either completed or times out, it is removed from the active list.
+
+If you're just requesting a PID, you can use this minimal field set for the
+`request` object:
+
+    {"bus": 1, "id": 1234, "mode": 1, "pid": 5}
+
+### Responses
+
+The response to a successful request:
+
+    {"bus": 1,
+      "id": 1234,
+      "mode": 1,
+      "pid": 5,
+      "success": true,
+      "payload": "0x1234",
+      "value": 4660}
+
+and to an unsuccessful request, with the `negative_response_code` and no `pid`
+echo:
+
+    {"bus": 1,
+      "id": 1234,
+      "mode": 1,
+      "success": false,
+      "negative_response_code": 17}
+
+**bus** - the numerical identifier of the CAN bus where this response was
+    received.
+
+**id** - the CAN arbitration ID for this response.
+
+**mode** - the OBD-II mode of the original diagnostic request.
+
+**pid** - (optional) the PID for the request, if applicable.
+
+**success** -  true if the response received was a positive response. If this
+  field is false, the remote node returned an error and the
+  `negative_response_code` field should be populated.
+
+**negative_response_code** - (optional)  If requested node returned an error,
+    `success` will be `false` and this field will contain the negative response
+    code (NRC).
+
+Finally, the `payload` and `value` fields are mutually exclusive:
+
+**payload** - (optional) up to 7 bytes of data returned in the response,
+    represented as a hexadecimal number in a string. Many JSON parser cannot
+    handle 64-bit integers, which is why we are not using a numerical data type.
+
+**value** - (optional) if the response had a payload, this may be the
+    payload interpreted as an integer.
+
+The response to a simple PID request would look like this:
+
+    {"success": true, "bus": 1, "id": 1234, "mode": 1, "pid": 5, "payload": "0x2"}
+
+## Commands
+
+### Version Query
+
+The `version` command triggers the VI to inject a firmware version identifier
+response into the outgoing data stream.
+
+**Request**
+
+    { "command": "version"}
+
+**Response**
+
+    { "command_response": "version", "message": "v6.0-dev (default)"}
+
+### Device ID Query
+
+The `device_id` command triggers the VI to inject a unique device ID (e.g. the
+MAC address of an included Bluetooth module) into into the outgoing data stream.
+
+**Request**
+
+    { "command": "device_id"}
+
+**Response**
+
+    { "command_response": "device_id", "message": "0012345678"}
 
 ## Trace File Format
 
 An OpenXC vehicle trace file is a plaintext file that contains JSON objects,
-separated by newlines.
+separated by newlines (which may be either `\r\n` or `\n`, depending on the
+platform the trace file was recorded).
 
 The first line may be a metadata object, although this is optional:
 
@@ -142,10 +314,31 @@ manufacturers may support custom message names.
     * numerical, -179.0 to 179.0 degrees with standard GPS accuracy
     * 1Hz
 
+### Signals from Diagnostics Messages
+
+This set of signals is often retreived from OBD-II requests. The units can be
+found in the [OBD-II standard](http://en.wikipedia.org/wiki/OBD-II_PIDs#Mode_01).
+
+* engine_load
+* engine_coolant_temperature
+* barometric_pressure
+* commanded_throttle_position
+* throttle_position
+* fuel_level
+* intake_air_temperature
+* intake_manifold_pressure
+* running_time
+* fuel_pressure
+* mass_airflow
+* accelerator_pedal_position
+* ethanol_fuel_percentage
+* engine_oil_temperature
+* engine_torque
+
 License
 =======
 
-Copyright (c) 2012-2013 Ford Motor Company
+Copyright (c) 2012-2014 Ford Motor Company
 
 Licensed under the BSD license.
 
diff --git a/gen/cpp/openxc.pb b/gen/cpp/openxc.pb
index 88cf91aa..da312337 100644
--- a/gen/cpp/openxc.pb
+++ b/gen/cpp/openxc.pb
@@ -1,29 +1,77 @@
 
-è
-openxc.protoopenxc"¼

+Ã
+openxc.protoopenxc"”
 VehicleMessage)
 type
 
(2.openxc.VehicleMessage.Type'
 raw_message 
(2.openxc.RawMessage5
-translated_message 
(2.openxc.TranslatedMessage"
+translated_message 
(2.openxc.TranslatedMessage7
+diagnostic_response 
(2.openxc.DiagnosticResponse/
+control_command 
(2.openxc.ControlCommand1
+command_response 
(2.openxc.CommandResponse"Z
 Type
 RAW

 
-TRANSLATED";
+TRANSLATED
+
+DIAGNOSTIC
+CONTROL_COMMAND
+COMMAND_RESPONSE";
 
 RawMessage
 bus
 
(
 
 message_id 
(

-data 
("µ
+data 
("¦

+ControlCommand)
+type
 
(2.openxc.ControlCommand.Type5
+diagnostic_request 
(2.openxc.DiagnosticRequest"2
+Type
+VERSION


+	DEVICE_ID
+
+DIAGNOSTIC"M
+CommandResponse)
+type
 
(2.openxc.ControlCommand.Type
+message 
(	"ý

+DiagnosticRequest
+bus
 
(
+
+message_id 
(

+mode 
(

+pid 
(

+payload 
(
+multiple_responses 
(
+	frequency 
(

+name 
(	;
+decoded_type	 
(2%.openxc.DiagnosticRequest.DecodedType"!
+DecodedType
+NONE

+OBD2"¡

+DiagnosticResponse
+bus
 
(
+
+message_id 
(

+mode 
(

+pid 
(

+success 
(
+negative_response_code 
(

+payload 
(

+value 
(
"¢

+DynamicField'
+type
 
(2.openxc.DynamicField.Type
+string_value 
(	
+
numeric_value 
(

+
boolean_value 
("%
+Type
+
+STRING

+NUM
+BOOL"÷

 TranslatedMessage,
 type
 
(2.openxc.TranslatedMessage.Type
-name 
(	
-string_value 
(	
-
numeric_value 
(

-
boolean_value 
(
-string_event 
(	
-
numeric_event 
(

-
boolean_event 
("\
+name 
(	#
+value 
(2.openxc.DynamicField#
+event 
(2.openxc.DynamicField"\
 Type
 
 STRING

diff --git a/gen/cpp/openxc.pb.c b/gen/cpp/openxc.pb.c
index 1625254e..e3be2570 100644
--- a/gen/cpp/openxc.pb.c
+++ b/gen/cpp/openxc.pb.c
@@ -1,44 +1,88 @@
 /* Automatically generated nanopb constant definitions */
-/* Generated by nanopb-0.2.4-dev at Thu Oct 24 10:06:38 2013. */
+/* Generated by nanopb-0.2.5 at Wed Mar 26 09:29:06 2014. */
 
 #include "openxc.pb.h"
 
 
 
-const pb_field_t openxc_VehicleMessage_fields[4] = {
-    PB_FIELD2(  1, ENUM    , OPTIONAL, STATIC, FIRST, openxc_VehicleMessage, type, type, 0),
-    PB_FIELD2(  2, MESSAGE , OPTIONAL, STATIC, OTHER, openxc_VehicleMessage, raw_message, type, &openxc_RawMessage_fields),
-    PB_FIELD2(  3, MESSAGE , OPTIONAL, STATIC, OTHER, openxc_VehicleMessage, translated_message, raw_message, &openxc_TranslatedMessage_fields),
+const pb_field_t openxc_VehicleMessage_fields[7] = {
+    PB_FIELD2(  1, ENUM    , OPTIONAL, STATIC  , FIRST, openxc_VehicleMessage, type, type, 0),
+    PB_FIELD2(  2, MESSAGE , OPTIONAL, STATIC  , OTHER, openxc_VehicleMessage, raw_message, type, &openxc_RawMessage_fields),
+    PB_FIELD2(  3, MESSAGE , OPTIONAL, STATIC  , OTHER, openxc_VehicleMessage, translated_message, raw_message, &openxc_TranslatedMessage_fields),
+    PB_FIELD2(  4, MESSAGE , OPTIONAL, STATIC  , OTHER, openxc_VehicleMessage, diagnostic_response, translated_message, &openxc_DiagnosticResponse_fields),
+    PB_FIELD2(  5, MESSAGE , OPTIONAL, STATIC  , OTHER, openxc_VehicleMessage, control_command, diagnostic_response, &openxc_ControlCommand_fields),
+    PB_FIELD2(  6, MESSAGE , OPTIONAL, STATIC  , OTHER, openxc_VehicleMessage, command_response, control_command, &openxc_CommandResponse_fields),
     PB_LAST_FIELD
 };
 
 const pb_field_t openxc_RawMessage_fields[4] = {
-    PB_FIELD2(  1, INT32   , OPTIONAL, STATIC, FIRST, openxc_RawMessage, bus, bus, 0),
-    PB_FIELD2(  2, UINT32  , OPTIONAL, STATIC, OTHER, openxc_RawMessage, message_id, bus, 0),
-    PB_FIELD2(  3, UINT64  , OPTIONAL, STATIC, OTHER, openxc_RawMessage, data, message_id, 0),
+    PB_FIELD2(  1, INT32   , OPTIONAL, STATIC  , FIRST, openxc_RawMessage, bus, bus, 0),
+    PB_FIELD2(  2, UINT32  , OPTIONAL, STATIC  , OTHER, openxc_RawMessage, message_id, bus, 0),
+    PB_FIELD2(  3, BYTES   , OPTIONAL, STATIC  , OTHER, openxc_RawMessage, data, message_id, 0),
     PB_LAST_FIELD
 };
 
-const pb_field_t openxc_TranslatedMessage_fields[9] = {
-    PB_FIELD2(  1, ENUM    , OPTIONAL, STATIC, FIRST, openxc_TranslatedMessage, type, type, 0),
-    PB_FIELD2(  2, STRING  , OPTIONAL, STATIC, OTHER, openxc_TranslatedMessage, name, type, 0),
-    PB_FIELD2(  3, STRING  , OPTIONAL, STATIC, OTHER, openxc_TranslatedMessage, string_value, name, 0),
-    PB_FIELD2(  4, DOUBLE  , OPTIONAL, STATIC, OTHER, openxc_TranslatedMessage, numeric_value, string_value, 0),
-    PB_FIELD2(  5, BOOL    , OPTIONAL, STATIC, OTHER, openxc_TranslatedMessage, boolean_value, numeric_value, 0),
-    PB_FIELD2(  6, STRING  , OPTIONAL, STATIC, OTHER, openxc_TranslatedMessage, string_event, boolean_value, 0),
-    PB_FIELD2(  7, DOUBLE  , OPTIONAL, STATIC, OTHER, openxc_TranslatedMessage, numeric_event, string_event, 0),
-    PB_FIELD2(  8, BOOL    , OPTIONAL, STATIC, OTHER, openxc_TranslatedMessage, boolean_event, numeric_event, 0),
+const pb_field_t openxc_ControlCommand_fields[3] = {
+    PB_FIELD2(  1, ENUM    , OPTIONAL, STATIC  , FIRST, openxc_ControlCommand, type, type, 0),
+    PB_FIELD2(  2, MESSAGE , OPTIONAL, STATIC  , OTHER, openxc_ControlCommand, diagnostic_request, type, &openxc_DiagnosticRequest_fields),
+    PB_LAST_FIELD
+};
+
+const pb_field_t openxc_CommandResponse_fields[3] = {
+    PB_FIELD2(  1, ENUM    , OPTIONAL, STATIC  , FIRST, openxc_CommandResponse, type, type, 0),
+    PB_FIELD2(  2, STRING  , OPTIONAL, STATIC  , OTHER, openxc_CommandResponse, message, type, 0),
+    PB_LAST_FIELD
+};
+
+const pb_field_t openxc_DiagnosticRequest_fields[10] = {
+    PB_FIELD2(  1, INT32   , OPTIONAL, STATIC  , FIRST, openxc_DiagnosticRequest, bus, bus, 0),
+    PB_FIELD2(  2, UINT32  , OPTIONAL, STATIC  , OTHER, openxc_DiagnosticRequest, message_id, bus, 0),
+    PB_FIELD2(  3, UINT32  , OPTIONAL, STATIC  , OTHER, openxc_DiagnosticRequest, mode, message_id, 0),
+    PB_FIELD2(  4, UINT32  , OPTIONAL, STATIC  , OTHER, openxc_DiagnosticRequest, pid, mode, 0),
+    PB_FIELD2(  5, BYTES   , OPTIONAL, STATIC  , OTHER, openxc_DiagnosticRequest, payload, pid, 0),
+    PB_FIELD2(  6, BOOL    , OPTIONAL, STATIC  , OTHER, openxc_DiagnosticRequest, multiple_responses, payload, 0),
+    PB_FIELD2(  7, DOUBLE  , OPTIONAL, STATIC  , OTHER, openxc_DiagnosticRequest, frequency, multiple_responses, 0),
+    PB_FIELD2(  8, STRING  , OPTIONAL, STATIC  , OTHER, openxc_DiagnosticRequest, name, frequency, 0),
+    PB_FIELD2(  9, ENUM    , OPTIONAL, STATIC  , OTHER, openxc_DiagnosticRequest, decoded_type, name, 0),
+    PB_LAST_FIELD
+};
+
+const pb_field_t openxc_DiagnosticResponse_fields[9] = {
+    PB_FIELD2(  1, INT32   , OPTIONAL, STATIC  , FIRST, openxc_DiagnosticResponse, bus, bus, 0),
+    PB_FIELD2(  2, UINT32  , OPTIONAL, STATIC  , OTHER, openxc_DiagnosticResponse, message_id, bus, 0),
+    PB_FIELD2(  3, UINT32  , OPTIONAL, STATIC  , OTHER, openxc_DiagnosticResponse, mode, message_id, 0),
+    PB_FIELD2(  4, UINT32  , OPTIONAL, STATIC  , OTHER, openxc_DiagnosticResponse, pid, mode, 0),
+    PB_FIELD2(  5, BOOL    , OPTIONAL, STATIC  , OTHER, openxc_DiagnosticResponse, success, pid, 0),
+    PB_FIELD2(  6, UINT32  , OPTIONAL, STATIC  , OTHER, openxc_DiagnosticResponse, negative_response_code, success, 0),
+    PB_FIELD2(  7, BYTES   , OPTIONAL, STATIC  , OTHER, openxc_DiagnosticResponse, payload, negative_response_code, 0),
+    PB_FIELD2(  8, DOUBLE  , OPTIONAL, STATIC  , OTHER, openxc_DiagnosticResponse, value, payload, 0),
+    PB_LAST_FIELD
+};
+
+const pb_field_t openxc_DynamicField_fields[5] = {
+    PB_FIELD2(  1, ENUM    , OPTIONAL, STATIC  , FIRST, openxc_DynamicField, type, type, 0),
+    PB_FIELD2(  2, STRING  , OPTIONAL, STATIC  , OTHER, openxc_DynamicField, string_value, type, 0),
+    PB_FIELD2(  3, DOUBLE  , OPTIONAL, STATIC  , OTHER, openxc_DynamicField, numeric_value, string_value, 0),
+    PB_FIELD2(  4, BOOL    , OPTIONAL, STATIC  , OTHER, openxc_DynamicField, boolean_value, numeric_value, 0),
+    PB_LAST_FIELD
+};
+
+const pb_field_t openxc_TranslatedMessage_fields[5] = {
+    PB_FIELD2(  1, ENUM    , OPTIONAL, STATIC  , FIRST, openxc_TranslatedMessage, type, type, 0),
+    PB_FIELD2(  2, STRING  , OPTIONAL, STATIC  , OTHER, openxc_TranslatedMessage, name, type, 0),
+    PB_FIELD2(  3, MESSAGE , OPTIONAL, STATIC  , OTHER, openxc_TranslatedMessage, value, name, &openxc_DynamicField_fields),
+    PB_FIELD2(  4, MESSAGE , OPTIONAL, STATIC  , OTHER, openxc_TranslatedMessage, event, value, &openxc_DynamicField_fields),
     PB_LAST_FIELD
 };
 
 
 /* Check that field information fits in pb_field_t */
 #if !defined(PB_FIELD_16BIT) && !defined(PB_FIELD_32BIT)
-STATIC_ASSERT((pb_membersize(openxc_VehicleMessage, raw_message) < 256 && pb_membersize(openxc_VehicleMessage, translated_message) < 256), YOU_MUST_DEFINE_PB_FIELD_16BIT_FOR_MESSAGES_openxc_VehicleMessage_openxc_RawMessage_openxc_TranslatedMessage)
+STATIC_ASSERT((pb_membersize(openxc_VehicleMessage, raw_message) < 256 && pb_membersize(openxc_VehicleMessage, translated_message) < 256 && pb_membersize(openxc_VehicleMessage, diagnostic_response) < 256 && pb_membersize(openxc_VehicleMessage, control_command) < 256 && pb_membersize(openxc_VehicleMessage, command_response) < 256 && pb_membersize(openxc_ControlCommand, diagnostic_request) < 256 && pb_membersize(openxc_TranslatedMessage, value) < 256 && pb_membersize(openxc_TranslatedMessage, event) < 256), YOU_MUST_DEFINE_PB_FIELD_16BIT_FOR_MESSAGES_openxc_VehicleMessage_openxc_RawMessage_openxc_ControlCommand_openxc_CommandResponse_openxc_DiagnosticRequest_openxc_DiagnosticResponse_openxc_DynamicField_openxc_TranslatedMessage)
 #endif
 
 #if !defined(PB_FIELD_32BIT)
-STATIC_ASSERT((pb_membersize(openxc_VehicleMessage, raw_message) < 65536 && pb_membersize(openxc_VehicleMessage, translated_message) < 65536), YOU_MUST_DEFINE_PB_FIELD_32BIT_FOR_MESSAGES_openxc_VehicleMessage_openxc_RawMessage_openxc_TranslatedMessage)
+STATIC_ASSERT((pb_membersize(openxc_VehicleMessage, raw_message) < 65536 && pb_membersize(openxc_VehicleMessage, translated_message) < 65536 && pb_membersize(openxc_VehicleMessage, diagnostic_response) < 65536 && pb_membersize(openxc_VehicleMessage, control_command) < 65536 && pb_membersize(openxc_VehicleMessage, command_response) < 65536 && pb_membersize(openxc_ControlCommand, diagnostic_request) < 65536 && pb_membersize(openxc_TranslatedMessage, value) < 65536 && pb_membersize(openxc_TranslatedMessage, event) < 65536), YOU_MUST_DEFINE_PB_FIELD_32BIT_FOR_MESSAGES_openxc_VehicleMessage_openxc_RawMessage_openxc_ControlCommand_openxc_CommandResponse_openxc_DiagnosticRequest_openxc_DiagnosticResponse_openxc_DynamicField_openxc_TranslatedMessage)
 #endif
 
 /* On some platforms (such as AVR), double is really float.
diff --git a/gen/cpp/openxc.pb.h b/gen/cpp/openxc.pb.h
index 81a0779d..e70324f0 100644
--- a/gen/cpp/openxc.pb.h
+++ b/gen/cpp/openxc.pb.h
@@ -1,5 +1,5 @@
 /* Automatically generated nanopb header */
-/* Generated by nanopb-0.2.4-dev at Thu Oct 24 10:06:38 2013. */
+/* Generated by nanopb-0.2.5 at Wed Mar 26 09:29:06 2014. */
 
 #ifndef _PB_OPENXC_PB_H_
 #define _PB_OPENXC_PB_H_
@@ -12,9 +12,29 @@ extern "C" {
 /* Enum definitions */
 typedef enum _openxc_VehicleMessage_Type {
     openxc_VehicleMessage_Type_RAW = 1,
-    openxc_VehicleMessage_Type_TRANSLATED = 2
+    openxc_VehicleMessage_Type_TRANSLATED = 2,
+    openxc_VehicleMessage_Type_DIAGNOSTIC = 3,
+    openxc_VehicleMessage_Type_CONTROL_COMMAND = 4,
+    openxc_VehicleMessage_Type_COMMAND_RESPONSE = 5
 } openxc_VehicleMessage_Type;
 
+typedef enum _openxc_ControlCommand_Type {
+    openxc_ControlCommand_Type_VERSION = 1,
+    openxc_ControlCommand_Type_DEVICE_ID = 2,
+    openxc_ControlCommand_Type_DIAGNOSTIC = 3
+} openxc_ControlCommand_Type;
+
+typedef enum _openxc_DiagnosticRequest_DecodedType {
+    openxc_DiagnosticRequest_DecodedType_NONE = 1,
+    openxc_DiagnosticRequest_DecodedType_OBD2 = 2
+} openxc_DiagnosticRequest_DecodedType;
+
+typedef enum _openxc_DynamicField_Type {
+    openxc_DynamicField_Type_STRING = 1,
+    openxc_DynamicField_Type_NUM = 2,
+    openxc_DynamicField_Type_BOOL = 3
+} openxc_DynamicField_Type;
+
 typedef enum _openxc_TranslatedMessage_Type {
     openxc_TranslatedMessage_Type_STRING = 1,
     openxc_TranslatedMessage_Type_NUM = 2,
@@ -25,32 +45,104 @@ typedef enum _openxc_TranslatedMessage_Type {
 } openxc_TranslatedMessage_Type;
 
 /* Struct definitions */
+typedef struct _openxc_CommandResponse {
+    bool has_type;
+    openxc_ControlCommand_Type type;
+    bool has_message;
+    char message[128];
+} openxc_CommandResponse;
+
+typedef struct {
+    size_t size;
+    uint8_t bytes[8];
+} openxc_DiagnosticRequest_payload_t;
+
+typedef struct _openxc_DiagnosticRequest {
+    bool has_bus;
+    int32_t bus;
+    bool has_message_id;
+    uint32_t message_id;
+    bool has_mode;
+    uint32_t mode;
+    bool has_pid;
+    uint32_t pid;
+    bool has_payload;
+    openxc_DiagnosticRequest_payload_t payload;
+    bool has_multiple_responses;
+    bool multiple_responses;
+    bool has_frequency;
+    double frequency;
+    bool has_name;
+    char name[10];
+    bool has_decoded_type;
+    openxc_DiagnosticRequest_DecodedType decoded_type;
+} openxc_DiagnosticRequest;
+
+typedef struct {
+    size_t size;
+    uint8_t bytes[8];
+} openxc_DiagnosticResponse_payload_t;
+
+typedef struct _openxc_DiagnosticResponse {
+    bool has_bus;
+    int32_t bus;
+    bool has_message_id;
+    uint32_t message_id;
+    bool has_mode;
+    uint32_t mode;
+    bool has_pid;
+    uint32_t pid;
+    bool has_success;
+    bool success;
+    bool has_negative_response_code;
+    uint32_t negative_response_code;
+    bool has_payload;
+    openxc_DiagnosticResponse_payload_t payload;
+    bool has_value;
+    double value;
+} openxc_DiagnosticResponse;
+
+typedef struct _openxc_DynamicField {
+    bool has_type;
+    openxc_DynamicField_Type type;
+    bool has_string_value;
+    char string_value[100];
+    bool has_numeric_value;
+    double numeric_value;
+    bool has_boolean_value;
+    bool boolean_value;
+} openxc_DynamicField;
+
+typedef struct {
+    size_t size;
+    uint8_t bytes[8];
+} openxc_RawMessage_data_t;
+
 typedef struct _openxc_RawMessage {
     bool has_bus;
     int32_t bus;
     bool has_message_id;
     uint32_t message_id;
     bool has_data;
-    uint64_t data;
+    openxc_RawMessage_data_t data;
 } openxc_RawMessage;
 
+typedef struct _openxc_ControlCommand {
+    bool has_type;
+    openxc_ControlCommand_Type type;
+    bool has_diagnostic_request;
+    openxc_DiagnosticRequest diagnostic_request;
+} openxc_ControlCommand;
+
 typedef struct _openxc_TranslatedMessage {
     bool has_type;
     openxc_TranslatedMessage_Type type;
     bool has_name;
     char name[100];
-    bool has_string_value;
-    char string_value[100];
-    bool has_numeric_value;
-    double numeric_value;
-    bool has_boolean_value;
-    bool boolean_value;
-    bool has_string_event;
-    char string_event[100];
-    bool has_numeric_event;
-    double numeric_event;
-    bool has_boolean_event;
-    bool boolean_event;
+    bool has_value;
+    openxc_DynamicField value;
+    bool has_event;
+    openxc_DynamicField event;
 } openxc_TranslatedMessage;
 
 typedef struct _openxc_VehicleMessage {
@@ -60,35 +152,75 @@ typedef struct _openxc_VehicleMessage {
     openxc_RawMessage raw_message;
     bool has_translated_message;
     openxc_TranslatedMessage translated_message;
+    bool has_diagnostic_response;
+    openxc_DiagnosticResponse diagnostic_response;
+    bool has_control_command;
+    openxc_ControlCommand control_command;
+    bool has_command_response;
+    openxc_CommandResponse command_response;
 } openxc_VehicleMessage;
 
 /* Default values for struct fields */
 
 /* Field tags (for use in manual encoding/decoding) */
+#define openxc_CommandResponse_type_tag          1
+#define openxc_CommandResponse_message_tag       2
+#define openxc_DiagnosticRequest_bus_tag         1
+#define openxc_DiagnosticRequest_message_id_tag  2
+#define openxc_DiagnosticRequest_mode_tag        3
+#define openxc_DiagnosticRequest_pid_tag         4
+#define openxc_DiagnosticRequest_payload_tag     5
+#define openxc_DiagnosticRequest_multiple_responses_tag 6
+#define openxc_DiagnosticRequest_frequency_tag   7
+#define openxc_DiagnosticRequest_name_tag        8
+#define openxc_DiagnosticRequest_decoded_type_tag 9
+#define openxc_DiagnosticResponse_bus_tag        1
+#define openxc_DiagnosticResponse_message_id_tag 2
+#define openxc_DiagnosticResponse_mode_tag       3
+#define openxc_DiagnosticResponse_pid_tag        4
+#define openxc_DiagnosticResponse_success_tag    5
+#define openxc_DiagnosticResponse_negative_response_code_tag 6
+#define openxc_DiagnosticResponse_payload_tag    7
+#define openxc_DiagnosticResponse_value_tag      8
+#define openxc_DynamicField_type_tag             1
+#define openxc_DynamicField_string_value_tag     2
+#define openxc_DynamicField_numeric_value_tag    3
+#define openxc_DynamicField_boolean_value_tag    4
 #define openxc_RawMessage_bus_tag                1
 #define openxc_RawMessage_message_id_tag         2
 #define openxc_RawMessage_data_tag               3
+#define openxc_ControlCommand_type_tag           1
+#define openxc_ControlCommand_diagnostic_request_tag 2
 #define openxc_TranslatedMessage_type_tag        1
 #define openxc_TranslatedMessage_name_tag        2
-#define openxc_TranslatedMessage_string_value_tag 3
-#define openxc_TranslatedMessage_numeric_value_tag 4
-#define openxc_TranslatedMessage_boolean_value_tag 5
-#define openxc_TranslatedMessage_string_event_tag 6
-#define openxc_TranslatedMessage_numeric_event_tag 7
-#define openxc_TranslatedMessage_boolean_event_tag 8
+#define openxc_TranslatedMessage_value_tag       3
+#define openxc_TranslatedMessage_event_tag       4
 #define openxc_VehicleMessage_type_tag           1
 #define openxc_VehicleMessage_raw_message_tag    2
 #define openxc_VehicleMessage_translated_message_tag 3
+#define openxc_VehicleMessage_diagnostic_response_tag 4
+#define openxc_VehicleMessage_control_command_tag 5
+#define openxc_VehicleMessage_command_response_tag 6
 
 /* Struct field encoding specification for nanopb */
-extern const pb_field_t openxc_VehicleMessage_fields[4];
+extern const pb_field_t openxc_VehicleMessage_fields[7];
 extern const pb_field_t openxc_RawMessage_fields[4];
-extern const pb_field_t openxc_TranslatedMessage_fields[9];
+extern const pb_field_t openxc_ControlCommand_fields[3];
+extern const pb_field_t openxc_CommandResponse_fields[3];
+extern const pb_field_t openxc_DiagnosticRequest_fields[10];
+extern const pb_field_t openxc_DiagnosticResponse_fields[9];
+extern const pb_field_t openxc_DynamicField_fields[5];
+extern const pb_field_t openxc_TranslatedMessage_fields[5];
 
 /* Maximum encoded size of messages (where known) */
-#define openxc_VehicleMessage_size               368
-#define openxc_RawMessage_size                   23
-#define openxc_TranslatedMessage_size            334
+#define openxc_VehicleMessage_size               664
+#define openxc_RawMessage_size                   27
+#define openxc_ControlCommand_size               76
+#define openxc_CommandResponse_size              137
+#define openxc_DiagnosticRequest_size            68
+#define openxc_DiagnosticResponse_size           56
+#define openxc_DynamicField_size                 119
+#define openxc_TranslatedMessage_size            350
 
 #ifdef __cplusplus
 } /* extern "C" */
diff --git a/gen/java/com/openxc/BinaryMessages.java b/gen/java/com/openxc/BinaryMessages.java
index 02f2579f..777acd03 100644
--- a/gen/java/com/openxc/BinaryMessages.java
+++ b/gen/java/com/openxc/BinaryMessages.java
@@ -48,6 +48,48 @@ public final class BinaryMessages {
      * <code>optional .openxc.TranslatedMessage translated_message = 3;</code>
      */
     com.openxc.BinaryMessages.TranslatedMessageOrBuilder getTranslatedMessageOrBuilder();
+
+    // optional .openxc.DiagnosticResponse diagnostic_response = 4;
+    /**
+     * <code>optional .openxc.DiagnosticResponse diagnostic_response = 4;</code>
+     */
+    boolean hasDiagnosticResponse();
+    /**
+     * <code>optional .openxc.DiagnosticResponse diagnostic_response = 4;</code>
+     */
+    com.openxc.BinaryMessages.DiagnosticResponse getDiagnosticResponse();
+    /**
+     * <code>optional .openxc.DiagnosticResponse diagnostic_response = 4;</code>
+     */
+    com.openxc.BinaryMessages.DiagnosticResponseOrBuilder getDiagnosticResponseOrBuilder();
+
+    // optional .openxc.ControlCommand control_command = 5;
+    /**
+     * <code>optional .openxc.ControlCommand control_command = 5;</code>
+     */
+    boolean hasControlCommand();
+    /**
+     * <code>optional .openxc.ControlCommand control_command = 5;</code>
+     */
+    com.openxc.BinaryMessages.ControlCommand getControlCommand();
+    /**
+     * <code>optional .openxc.ControlCommand control_command = 5;</code>
+     */
+    com.openxc.BinaryMessages.ControlCommandOrBuilder getControlCommandOrBuilder();
+
+    // optional .openxc.CommandResponse command_response = 6;
+    /**
+     * <code>optional .openxc.CommandResponse command_response = 6;</code>
+     */
+    boolean hasCommandResponse();
+    /**
+     * <code>optional .openxc.CommandResponse command_response = 6;</code>
+     */
+    com.openxc.BinaryMessages.CommandResponse getCommandResponse();
+    /**
+     * <code>optional .openxc.CommandResponse command_response = 6;</code>
+     */
+    com.openxc.BinaryMessages.CommandResponseOrBuilder getCommandResponseOrBuilder();
   }
   /**
    * Protobuf type {@code openxc.VehicleMessage}
@@ -137,6 +179,45 @@ public final class BinaryMessages {
               bitField0_ |= 0x00000004;
               break;
             }
+            case 34: {
+              com.openxc.BinaryMessages.DiagnosticResponse.Builder subBuilder = null;
+              if (((bitField0_ & 0x00000008) == 0x00000008)) {
+                subBuilder = diagnosticResponse_.toBuilder();
+              }
+              diagnosticResponse_ = input.readMessage(com.openxc.BinaryMessages.DiagnosticResponse.PARSER, extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(diagnosticResponse_);
+                diagnosticResponse_ = subBuilder.buildPartial();
+              }
+              bitField0_ |= 0x00000008;
+              break;
+            }
+            case 42: {
+              com.openxc.BinaryMessages.ControlCommand.Builder subBuilder = null;
+              if (((bitField0_ & 0x00000010) == 0x00000010)) {
+                subBuilder = controlCommand_.toBuilder();
+              }
+              controlCommand_ = input.readMessage(com.openxc.BinaryMessages.ControlCommand.PARSER, extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(controlCommand_);
+                controlCommand_ = subBuilder.buildPartial();
+              }
+              bitField0_ |= 0x00000010;
+              break;
+            }
+            case 50: {
+              com.openxc.BinaryMessages.CommandResponse.Builder subBuilder = null;
+              if (((bitField0_ & 0x00000020) == 0x00000020)) {
+                subBuilder = commandResponse_.toBuilder();
+              }
+              commandResponse_ = input.readMessage(com.openxc.BinaryMessages.CommandResponse.PARSER, extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(commandResponse_);
+                commandResponse_ = subBuilder.buildPartial();
+              }
+              bitField0_ |= 0x00000020;
+              break;
+            }
           }
         }
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
@@ -189,6 +270,18 @@ public final class BinaryMessages {
        * <code>TRANSLATED = 2;</code>
        */
       TRANSLATED(1, 2),
+      /**
+       * <code>DIAGNOSTIC = 3;</code>
+       */
+      DIAGNOSTIC(2, 3),
+      /**
+       * <code>CONTROL_COMMAND = 4;</code>
+       */
+      CONTROL_COMMAND(3, 4),
+      /**
+       * <code>COMMAND_RESPONSE = 5;</code>
+       */
+      COMMAND_RESPONSE(4, 5),
       ;
 
       /**
@@ -199,6 +292,18 @@ public final class BinaryMessages {
        * <code>TRANSLATED = 2;</code>
        */
       public static final int TRANSLATED_VALUE = 2;
+      /**
+       * <code>DIAGNOSTIC = 3;</code>
+       */
+      public static final int DIAGNOSTIC_VALUE = 3;
+      /**
+       * <code>CONTROL_COMMAND = 4;</code>
+       */
+      public static final int CONTROL_COMMAND_VALUE = 4;
+      /**
+       * <code>COMMAND_RESPONSE = 5;</code>
+       */
+      public static final int COMMAND_RESPONSE_VALUE = 5;
 
 
       public final int getNumber() { return value; }
@@ -207,6 +312,9 @@ public final class BinaryMessages {
         switch (value) {
           case 1: return RAW;
           case 2: return TRANSLATED;
+          case 3: return DIAGNOSTIC;
+          case 4: return CONTROL_COMMAND;
+          case 5: return COMMAND_RESPONSE;
           default: return null;
         }
       }
@@ -319,10 +427,79 @@ public final class BinaryMessages {
       return translatedMessage_;
     }
 
+    // optional .openxc.DiagnosticResponse diagnostic_response = 4;
+    public static final int DIAGNOSTIC_RESPONSE_FIELD_NUMBER = 4;
+    private com.openxc.BinaryMessages.DiagnosticResponse diagnosticResponse_;
+    /**
+     * <code>optional .openxc.DiagnosticResponse diagnostic_response = 4;</code>
+     */
+    public boolean hasDiagnosticResponse() {
+      return ((bitField0_ & 0x00000008) == 0x00000008);
+    }
+    /**
+     * <code>optional .openxc.DiagnosticResponse diagnostic_response = 4;</code>
+     */
+    public com.openxc.BinaryMessages.DiagnosticResponse getDiagnosticResponse() {
+      return diagnosticResponse_;
+    }
+    /**
+     * <code>optional .openxc.DiagnosticResponse diagnostic_response = 4;</code>
+     */
+    public com.openxc.BinaryMessages.DiagnosticResponseOrBuilder getDiagnosticResponseOrBuilder() {
+      return diagnosticResponse_;
+    }
+
+    // optional .openxc.ControlCommand control_command = 5;
+    public static final int CONTROL_COMMAND_FIELD_NUMBER = 5;
+    private com.openxc.BinaryMessages.ControlCommand controlCommand_;
+    /**
+     * <code>optional .openxc.ControlCommand control_command = 5;</code>
+     */
+    public boolean hasControlCommand() {
+      return ((bitField0_ & 0x00000010) == 0x00000010);
+    }
+    /**
+     * <code>optional .openxc.ControlCommand control_command = 5;</code>
+     */
+    public com.openxc.BinaryMessages.ControlCommand getControlCommand() {
+      return controlCommand_;
+    }
+    /**
+     * <code>optional .openxc.ControlCommand control_command = 5;</code>
+     */
+    public com.openxc.BinaryMessages.ControlCommandOrBuilder getControlCommandOrBuilder() {
+      return controlCommand_;
+    }
+
+    // optional .openxc.CommandResponse command_response = 6;
+    public static final int COMMAND_RESPONSE_FIELD_NUMBER = 6;
+    private com.openxc.BinaryMessages.CommandResponse commandResponse_;
+    /**
+     * <code>optional .openxc.CommandResponse command_response = 6;</code>
+     */
+    public boolean hasCommandResponse() {
+      return ((bitField0_ & 0x00000020) == 0x00000020);
+    }
+    /**
+     * <code>optional .openxc.CommandResponse command_response = 6;</code>
+     */
+    public com.openxc.BinaryMessages.CommandResponse getCommandResponse() {
+      return commandResponse_;
+    }
+    /**
+     * <code>optional .openxc.CommandResponse command_response = 6;</code>
+     */
+    public com.openxc.BinaryMessages.CommandResponseOrBuilder getCommandResponseOrBuilder() {
+      return commandResponse_;
+    }
+
     private void initFields() {
       type_ = com.openxc.BinaryMessages.VehicleMessage.Type.RAW;
       rawMessage_ = com.openxc.BinaryMessages.RawMessage.getDefaultInstance();
       translatedMessage_ = com.openxc.BinaryMessages.TranslatedMessage.getDefaultInstance();
+      diagnosticResponse_ = com.openxc.BinaryMessages.DiagnosticResponse.getDefaultInstance();
+      controlCommand_ = com.openxc.BinaryMessages.ControlCommand.getDefaultInstance();
+      commandResponse_ = com.openxc.BinaryMessages.CommandResponse.getDefaultInstance();
     }
     private byte memoizedIsInitialized = -1;
     public final boolean isInitialized() {
@@ -345,6 +522,15 @@ public final class BinaryMessages {
       if (((bitField0_ & 0x00000004) == 0x00000004)) {
         output.writeMessage(3, translatedMessage_);
       }
+      if (((bitField0_ & 0x00000008) == 0x00000008)) {
+        output.writeMessage(4, diagnosticResponse_);
+      }
+      if (((bitField0_ & 0x00000010) == 0x00000010)) {
+        output.writeMessage(5, controlCommand_);
+      }
+      if (((bitField0_ & 0x00000020) == 0x00000020)) {
+        output.writeMessage(6, commandResponse_);
+      }
       getUnknownFields().writeTo(output);
     }
 
@@ -366,6 +552,18 @@ public final class BinaryMessages {
         size += com.google.protobuf.CodedOutputStream
           .computeMessageSize(3, translatedMessage_);
       }
+      if (((bitField0_ & 0x00000008) == 0x00000008)) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeMessageSize(4, diagnosticResponse_);
+      }
+      if (((bitField0_ & 0x00000010) == 0x00000010)) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeMessageSize(5, controlCommand_);
+      }
+      if (((bitField0_ & 0x00000020) == 0x00000020)) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeMessageSize(6, commandResponse_);
+      }
       size += getUnknownFields().getSerializedSize();
       memoizedSerializedSize = size;
       return size;
@@ -476,6 +674,9 @@ public final class BinaryMessages {
         if (com.google.protobuf.GeneratedMessage.alwaysUseFieldBuilders) {
           getRawMessageFieldBuilder();
           getTranslatedMessageFieldBuilder();
+          getDiagnosticResponseFieldBuilder();
+          getControlCommandFieldBuilder();
+          getCommandResponseFieldBuilder();
         }
       }
       private static Builder create() {
@@ -498,6 +699,24 @@ public final class BinaryMessages {
           translatedMessageBuilder_.clear();
         }
         bitField0_ = (bitField0_ & ~0x00000004);
+        if (diagnosticResponseBuilder_ == null) {
+          diagnosticResponse_ = com.openxc.BinaryMessages.DiagnosticResponse.getDefaultInstance();
+        } else {
+          diagnosticResponseBuilder_.clear();
+        }
+        bitField0_ = (bitField0_ & ~0x00000008);
+        if (controlCommandBuilder_ == null) {
+          controlCommand_ = com.openxc.BinaryMessages.ControlCommand.getDefaultInstance();
+        } else {
+          controlCommandBuilder_.clear();
+        }
+        bitField0_ = (bitField0_ & ~0x00000010);
+        if (commandResponseBuilder_ == null) {
+          commandResponse_ = com.openxc.BinaryMessages.CommandResponse.getDefaultInstance();
+        } else {
+          commandResponseBuilder_.clear();
+        }
+        bitField0_ = (bitField0_ & ~0x00000020);
         return this;
       }
 
@@ -546,6 +765,30 @@ public final class BinaryMessages {
         } else {
           result.translatedMessage_ = translatedMessageBuilder_.build();
         }
+        if (((from_bitField0_ & 0x00000008) == 0x00000008)) {
+          to_bitField0_ |= 0x00000008;
+        }
+        if (diagnosticResponseBuilder_ == null) {
+          result.diagnosticResponse_ = diagnosticResponse_;
+        } else {
+          result.diagnosticResponse_ = diagnosticResponseBuilder_.build();
+        }
+        if (((from_bitField0_ & 0x00000010) == 0x00000010)) {
+          to_bitField0_ |= 0x00000010;
+        }
+        if (controlCommandBuilder_ == null) {
+          result.controlCommand_ = controlCommand_;
+        } else {
+          result.controlCommand_ = controlCommandBuilder_.build();
+        }
+        if (((from_bitField0_ & 0x00000020) == 0x00000020)) {
+          to_bitField0_ |= 0x00000020;
+        }
+        if (commandResponseBuilder_ == null) {
+          result.commandResponse_ = commandResponse_;
+        } else {
+          result.commandResponse_ = commandResponseBuilder_.build();
+        }
         result.bitField0_ = to_bitField0_;
         onBuilt();
         return result;
@@ -571,6 +814,15 @@ public final class BinaryMessages {
         if (other.hasTranslatedMessage()) {
           mergeTranslatedMessage(other.getTranslatedMessage());
         }
+        if (other.hasDiagnosticResponse()) {
+          mergeDiagnosticResponse(other.getDiagnosticResponse());
+        }
+        if (other.hasControlCommand()) {
+          mergeControlCommand(other.getControlCommand());
+        }
+        if (other.hasCommandResponse()) {
+          mergeCommandResponse(other.getCommandResponse());
+        }
         this.mergeUnknownFields(other.getUnknownFields());
         return this;
       }
@@ -868,6 +1120,357 @@ public final class BinaryMessages {
         return translatedMessageBuilder_;
       }
 
+      // optional .openxc.DiagnosticResponse diagnostic_response = 4;
+      private com.openxc.BinaryMessages.DiagnosticResponse diagnosticResponse_ = com.openxc.BinaryMessages.DiagnosticResponse.getDefaultInstance();
+      private com.google.protobuf.SingleFieldBuilder<
+          com.openxc.BinaryMessages.DiagnosticResponse, com.openxc.BinaryMessages.DiagnosticResponse.Builder, com.openxc.BinaryMessages.DiagnosticResponseOrBuilder> diagnosticResponseBuilder_;
+      /**
+       * <code>optional .openxc.DiagnosticResponse diagnostic_response = 4;</code>
+       */
+      public boolean hasDiagnosticResponse() {
+        return ((bitField0_ & 0x00000008) == 0x00000008);
+      }
+      /**
+       * <code>optional .openxc.DiagnosticResponse diagnostic_response = 4;</code>
+       */
+      public com.openxc.BinaryMessages.DiagnosticResponse getDiagnosticResponse() {
+        if (diagnosticResponseBuilder_ == null) {
+          return diagnosticResponse_;
+        } else {
+          return diagnosticResponseBuilder_.getMessage();
+        }
+      }
+      /**
+       * <code>optional .openxc.DiagnosticResponse diagnostic_response = 4;</code>
+       */
+      public Builder setDiagnosticResponse(com.openxc.BinaryMessages.DiagnosticResponse value) {
+        if (diagnosticResponseBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          diagnosticResponse_ = value;
+          onChanged();
+        } else {
+          diagnosticResponseBuilder_.setMessage(value);
+        }
+        bitField0_ |= 0x00000008;
+        return this;
+      }
+      /**
+       * <code>optional .openxc.DiagnosticResponse diagnostic_response = 4;</code>
+       */
+      public Builder setDiagnosticResponse(
+          com.openxc.BinaryMessages.DiagnosticResponse.Builder builderForValue) {
+        if (diagnosticResponseBuilder_ == null) {
+          diagnosticResponse_ = builderForValue.build();
+          onChanged();
+        } else {
+          diagnosticResponseBuilder_.setMessage(builderForValue.build());
+        }
+        bitField0_ |= 0x00000008;
+        return this;
+      }
+      /**
+       * <code>optional .openxc.DiagnosticResponse diagnostic_response = 4;</code>
+       */
+      public Builder mergeDiagnosticResponse(com.openxc.BinaryMessages.DiagnosticResponse value) {
+        if (diagnosticResponseBuilder_ == null) {
+          if (((bitField0_ & 0x00000008) == 0x00000008) &&
+              diagnosticResponse_ != com.openxc.BinaryMessages.DiagnosticResponse.getDefaultInstance()) {
+            diagnosticResponse_ =
+              com.openxc.BinaryMessages.DiagnosticResponse.newBuilder(diagnosticResponse_).mergeFrom(value).buildPartial();
+          } else {
+            diagnosticResponse_ = value;
+          }
+          onChanged();
+        } else {
+          diagnosticResponseBuilder_.mergeFrom(value);
+        }
+        bitField0_ |= 0x00000008;
+        return this;
+      }
+      /**
+       * <code>optional .openxc.DiagnosticResponse diagnostic_response = 4;</code>
+       */
+      public Builder clearDiagnosticResponse() {
+        if (diagnosticResponseBuilder_ == null) {
+          diagnosticResponse_ = com.openxc.BinaryMessages.DiagnosticResponse.getDefaultInstance();
+          onChanged();
+        } else {
+          diagnosticResponseBuilder_.clear();
+        }
+        bitField0_ = (bitField0_ & ~0x00000008);
+        return this;
+      }
+      /**
+       * <code>optional .openxc.DiagnosticResponse diagnostic_response = 4;</code>
+       */
+      public com.openxc.BinaryMessages.DiagnosticResponse.Builder getDiagnosticResponseBuilder() {
+        bitField0_ |= 0x00000008;
+        onChanged();
+        return getDiagnosticResponseFieldBuilder().getBuilder();
+      }
+      /**
+       * <code>optional .openxc.DiagnosticResponse diagnostic_response = 4;</code>
+       */
+      public com.openxc.BinaryMessages.DiagnosticResponseOrBuilder getDiagnosticResponseOrBuilder() {
+        if (diagnosticResponseBuilder_ != null) {
+          return diagnosticResponseBuilder_.getMessageOrBuilder();
+        } else {
+          return diagnosticResponse_;
+        }
+      }
+      /**
+       * <code>optional .openxc.DiagnosticResponse diagnostic_response = 4;</code>
+       */
+      private com.google.protobuf.SingleFieldBuilder<
+          com.openxc.BinaryMessages.DiagnosticResponse, com.openxc.BinaryMessages.DiagnosticResponse.Builder, com.openxc.BinaryMessages.DiagnosticResponseOrBuilder> 
+          getDiagnosticResponseFieldBuilder() {
+        if (diagnosticResponseBuilder_ == null) {
+          diagnosticResponseBuilder_ = new com.google.protobuf.SingleFieldBuilder<
+              com.openxc.BinaryMessages.DiagnosticResponse, com.openxc.BinaryMessages.DiagnosticResponse.Builder, com.openxc.BinaryMessages.DiagnosticResponseOrBuilder>(
+                  diagnosticResponse_,
+                  getParentForChildren(),
+                  isClean());
+          diagnosticResponse_ = null;
+        }
+        return diagnosticResponseBuilder_;
+      }
+
+      // optional .openxc.ControlCommand control_command = 5;
+      private com.openxc.BinaryMessages.ControlCommand controlCommand_ = com.openxc.BinaryMessages.ControlCommand.getDefaultInstance();
+      private com.google.protobuf.SingleFieldBuilder<
+          com.openxc.BinaryMessages.ControlCommand, com.openxc.BinaryMessages.ControlCommand.Builder, com.openxc.BinaryMessages.ControlCommandOrBuilder> controlCommandBuilder_;
+      /**
+       * <code>optional .openxc.ControlCommand control_command = 5;</code>
+       */
+      public boolean hasControlCommand() {
+        return ((bitField0_ & 0x00000010) == 0x00000010);
+      }
+      /**
+       * <code>optional .openxc.ControlCommand control_command = 5;</code>
+       */
+      public com.openxc.BinaryMessages.ControlCommand getControlCommand() {
+        if (controlCommandBuilder_ == null) {
+          return controlCommand_;
+        } else {
+          return controlCommandBuilder_.getMessage();
+        }
+      }
+      /**
+       * <code>optional .openxc.ControlCommand control_command = 5;</code>
+       */
+      public Builder setControlCommand(com.openxc.BinaryMessages.ControlCommand value) {
+        if (controlCommandBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          controlCommand_ = value;
+          onChanged();
+        } else {
+          controlCommandBuilder_.setMessage(value);
+        }
+        bitField0_ |= 0x00000010;
+        return this;
+      }
+      /**
+       * <code>optional .openxc.ControlCommand control_command = 5;</code>
+       */
+      public Builder setControlCommand(
+          com.openxc.BinaryMessages.ControlCommand.Builder builderForValue) {
+        if (controlCommandBuilder_ == null) {
+          controlCommand_ = builderForValue.build();
+          onChanged();
+        } else {
+          controlCommandBuilder_.setMessage(builderForValue.build());
+        }
+        bitField0_ |= 0x00000010;
+        return this;
+      }
+      /**
+       * <code>optional .openxc.ControlCommand control_command = 5;</code>
+       */
+      public Builder mergeControlCommand(com.openxc.BinaryMessages.ControlCommand value) {
+        if (controlCommandBuilder_ == null) {
+          if (((bitField0_ & 0x00000010) == 0x00000010) &&
+              controlCommand_ != com.openxc.BinaryMessages.ControlCommand.getDefaultInstance()) {
+            controlCommand_ =
+              com.openxc.BinaryMessages.ControlCommand.newBuilder(controlCommand_).mergeFrom(value).buildPartial();
+          } else {
+            controlCommand_ = value;
+          }
+          onChanged();
+        } else {
+          controlCommandBuilder_.mergeFrom(value);
+        }
+        bitField0_ |= 0x00000010;
+        return this;
+      }
+      /**
+       * <code>optional .openxc.ControlCommand control_command = 5;</code>
+       */
+      public Builder clearControlCommand() {
+        if (controlCommandBuilder_ == null) {
+          controlCommand_ = com.openxc.BinaryMessages.ControlCommand.getDefaultInstance();
+          onChanged();
+        } else {
+          controlCommandBuilder_.clear();
+        }
+        bitField0_ = (bitField0_ & ~0x00000010);
+        return this;
+      }
+      /**
+       * <code>optional .openxc.ControlCommand control_command = 5;</code>
+       */
+      public com.openxc.BinaryMessages.ControlCommand.Builder getControlCommandBuilder() {
+        bitField0_ |= 0x00000010;
+        onChanged();
+        return getControlCommandFieldBuilder().getBuilder();
+      }
+      /**
+       * <code>optional .openxc.ControlCommand control_command = 5;</code>
+       */
+      public com.openxc.BinaryMessages.ControlCommandOrBuilder getControlCommandOrBuilder() {
+        if (controlCommandBuilder_ != null) {
+          return controlCommandBuilder_.getMessageOrBuilder();
+        } else {
+          return controlCommand_;
+        }
+      }
+      /**
+       * <code>optional .openxc.ControlCommand control_command = 5;</code>
+       */
+      private com.google.protobuf.SingleFieldBuilder<
+          com.openxc.BinaryMessages.ControlCommand, com.openxc.BinaryMessages.ControlCommand.Builder, com.openxc.BinaryMessages.ControlCommandOrBuilder> 
+          getControlCommandFieldBuilder() {
+        if (controlCommandBuilder_ == null) {
+          controlCommandBuilder_ = new com.google.protobuf.SingleFieldBuilder<
+              com.openxc.BinaryMessages.ControlCommand, com.openxc.BinaryMessages.ControlCommand.Builder, com.openxc.BinaryMessages.ControlCommandOrBuilder>(
+                  controlCommand_,
+                  getParentForChildren(),
+                  isClean());
+          controlCommand_ = null;
+        }
+        return controlCommandBuilder_;
+      }
+
+      // optional .openxc.CommandResponse command_response = 6;
+      private com.openxc.BinaryMessages.CommandResponse commandResponse_ = com.openxc.BinaryMessages.CommandResponse.getDefaultInstance();
+      private com.google.protobuf.SingleFieldBuilder<
+          com.openxc.BinaryMessages.CommandResponse, com.openxc.BinaryMessages.CommandResponse.Builder, com.openxc.BinaryMessages.CommandResponseOrBuilder> commandResponseBuilder_;
+      /**
+       * <code>optional .openxc.CommandResponse command_response = 6;</code>
+       */
+      public boolean hasCommandResponse() {
+        return ((bitField0_ & 0x00000020) == 0x00000020);
+      }
+      /**
+       * <code>optional .openxc.CommandResponse command_response = 6;</code>
+       */
+      public com.openxc.BinaryMessages.CommandResponse getCommandResponse() {
+        if (commandResponseBuilder_ == null) {
+          return commandResponse_;
+        } else {
+          return commandResponseBuilder_.getMessage();
+        }
+      }
+      /**
+       * <code>optional .openxc.CommandResponse command_response = 6;</code>
+       */
+      public Builder setCommandResponse(com.openxc.BinaryMessages.CommandResponse value) {
+        if (commandResponseBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          commandResponse_ = value;
+          onChanged();
+        } else {
+          commandResponseBuilder_.setMessage(value);
+        }
+        bitField0_ |= 0x00000020;
+        return this;
+      }
+      /**
+       * <code>optional .openxc.CommandResponse command_response = 6;</code>
+       */
+      public Builder setCommandResponse(
+          com.openxc.BinaryMessages.CommandResponse.Builder builderForValue) {
+        if (commandResponseBuilder_ == null) {
+          commandResponse_ = builderForValue.build();
+          onChanged();
+        } else {
+          commandResponseBuilder_.setMessage(builderForValue.build());
+        }
+        bitField0_ |= 0x00000020;
+        return this;
+      }
+      /**
+       * <code>optional .openxc.CommandResponse command_response = 6;</code>
+       */
+      public Builder mergeCommandResponse(com.openxc.BinaryMessages.CommandResponse value) {
+        if (commandResponseBuilder_ == null) {
+          if (((bitField0_ & 0x00000020) == 0x00000020) &&
+              commandResponse_ != com.openxc.BinaryMessages.CommandResponse.getDefaultInstance()) {
+            commandResponse_ =
+              com.openxc.BinaryMessages.CommandResponse.newBuilder(commandResponse_).mergeFrom(value).buildPartial();
+          } else {
+            commandResponse_ = value;
+          }
+          onChanged();
+        } else {
+          commandResponseBuilder_.mergeFrom(value);
+        }
+        bitField0_ |= 0x00000020;
+        return this;
+      }
+      /**
+       * <code>optional .openxc.CommandResponse command_response = 6;</code>
+       */
+      public Builder clearCommandResponse() {
+        if (commandResponseBuilder_ == null) {
+          commandResponse_ = com.openxc.BinaryMessages.CommandResponse.getDefaultInstance();
+          onChanged();
+        } else {
+          commandResponseBuilder_.clear();
+        }
+        bitField0_ = (bitField0_ & ~0x00000020);
+        return this;
+      }
+      /**
+       * <code>optional .openxc.CommandResponse command_response = 6;</code>
+       */
+      public com.openxc.BinaryMessages.CommandResponse.Builder getCommandResponseBuilder() {
+        bitField0_ |= 0x00000020;
+        onChanged();
+        return getCommandResponseFieldBuilder().getBuilder();
+      }
+      /**
+       * <code>optional .openxc.CommandResponse command_response = 6;</code>
+       */
+      public com.openxc.BinaryMessages.CommandResponseOrBuilder getCommandResponseOrBuilder() {
+        if (commandResponseBuilder_ != null) {
+          return commandResponseBuilder_.getMessageOrBuilder();
+        } else {
+          return commandResponse_;
+        }
+      }
+      /**
+       * <code>optional .openxc.CommandResponse command_response = 6;</code>
+       */
+      private com.google.protobuf.SingleFieldBuilder<
+          com.openxc.BinaryMessages.CommandResponse, com.openxc.BinaryMessages.CommandResponse.Builder, com.openxc.BinaryMessages.CommandResponseOrBuilder> 
+          getCommandResponseFieldBuilder() {
+        if (commandResponseBuilder_ == null) {
+          commandResponseBuilder_ = new com.google.protobuf.SingleFieldBuilder<
+              com.openxc.BinaryMessages.CommandResponse, com.openxc.BinaryMessages.CommandResponse.Builder, com.openxc.BinaryMessages.CommandResponseOrBuilder>(
+                  commandResponse_,
+                  getParentForChildren(),
+                  isClean());
+          commandResponse_ = null;
+        }
+        return commandResponseBuilder_;
+      }
+
       // @@protoc_insertion_point(builder_scope:openxc.VehicleMessage)
     }
 
@@ -902,15 +1505,15 @@ public final class BinaryMessages {
      */
     int getMessageId();
 
-    // optional uint64 data = 3;
+    // optional bytes data = 3;
     /**
-     * <code>optional uint64 data = 3;</code>
+     * <code>optional bytes data = 3;</code>
      */
     boolean hasData();
     /**
-     * <code>optional uint64 data = 3;</code>
+     * <code>optional bytes data = 3;</code>
      */
-    long getData();
+    com.google.protobuf.ByteString getData();
   }
   /**
    * Protobuf type {@code openxc.RawMessage}
@@ -973,9 +1576,9 @@ public final class BinaryMessages {
               messageId_ = input.readUInt32();
               break;
             }
-            case 24: {
+            case 26: {
               bitField0_ |= 0x00000004;
-              data_ = input.readUInt64();
+              data_ = input.readBytes();
               break;
             }
           }
@@ -1050,26 +1653,26 @@ public final class BinaryMessages {
       return messageId_;
     }
 
-    // optional uint64 data = 3;
+    // optional bytes data = 3;
     public static final int DATA_FIELD_NUMBER = 3;
-    private long data_;
+    private com.google.protobuf.ByteString data_;
     /**
-     * <code>optional uint64 data = 3;</code>
+     * <code>optional bytes data = 3;</code>
      */
     public boolean hasData() {
       return ((bitField0_ & 0x00000004) == 0x00000004);
     }
     /**
-     * <code>optional uint64 data = 3;</code>
+     * <code>optional bytes data = 3;</code>
      */
-    public long getData() {
+    public com.google.protobuf.ByteString getData() {
       return data_;
     }
 
     private void initFields() {
       bus_ = 0;
       messageId_ = 0;
-      data_ = 0L;
+      data_ = com.google.protobuf.ByteString.EMPTY;
     }
     private byte memoizedIsInitialized = -1;
     public final boolean isInitialized() {
@@ -1090,7 +1693,7 @@ public final class BinaryMessages {
         output.writeUInt32(2, messageId_);
       }
       if (((bitField0_ & 0x00000004) == 0x00000004)) {
-        output.writeUInt64(3, data_);
+        output.writeBytes(3, data_);
       }
       getUnknownFields().writeTo(output);
     }
@@ -1111,7 +1714,7 @@ public final class BinaryMessages {
       }
       if (((bitField0_ & 0x00000004) == 0x00000004)) {
         size += com.google.protobuf.CodedOutputStream
-          .computeUInt64Size(3, data_);
+          .computeBytesSize(3, data_);
       }
       size += getUnknownFields().getSerializedSize();
       memoizedSerializedSize = size;
@@ -1233,7 +1836,7 @@ public final class BinaryMessages {
         bitField0_ = (bitField0_ & ~0x00000001);
         messageId_ = 0;
         bitField0_ = (bitField0_ & ~0x00000002);
-        data_ = 0L;
+        data_ = com.google.protobuf.ByteString.EMPTY;
         bitField0_ = (bitField0_ & ~0x00000004);
         return this;
       }
@@ -1393,35 +1996,38 @@ public final class BinaryMessages {
         return this;
       }
 
-      // optional uint64 data = 3;
-      private long data_ ;
+      // optional bytes data = 3;
+      private com.google.protobuf.ByteString data_ = com.google.protobuf.ByteString.EMPTY;
       /**
-       * <code>optional uint64 data = 3;</code>
+       * <code>optional bytes data = 3;</code>
        */
       public boolean hasData() {
         return ((bitField0_ & 0x00000004) == 0x00000004);
       }
       /**
-       * <code>optional uint64 data = 3;</code>
+       * <code>optional bytes data = 3;</code>
        */
-      public long getData() {
+      public com.google.protobuf.ByteString getData() {
         return data_;
       }
       /**
-       * <code>optional uint64 data = 3;</code>
+       * <code>optional bytes data = 3;</code>
        */
-      public Builder setData(long value) {
-        bitField0_ |= 0x00000004;
+      public Builder setData(com.google.protobuf.ByteString value) {
+        if (value == null) {
+    throw new NullPointerException();
+  }
+  bitField0_ |= 0x00000004;
         data_ = value;
         onChanged();
         return this;
       }
       /**
-       * <code>optional uint64 data = 3;</code>
+       * <code>optional bytes data = 3;</code>
        */
       public Builder clearData() {
         bitField0_ = (bitField0_ & ~0x00000004);
-        data_ = 0L;
+        data_ = getDefaultInstance().getData();
         onChanged();
         return this;
       }
@@ -1437,103 +2043,4383 @@ public final class BinaryMessages {
     // @@protoc_insertion_point(class_scope:openxc.RawMessage)
   }
 
-  public interface TranslatedMessageOrBuilder
+  public interface ControlCommandOrBuilder
       extends com.google.protobuf.MessageOrBuilder {
 
-    // optional .openxc.TranslatedMessage.Type type = 1;
+    // optional .openxc.ControlCommand.Type type = 1;
     /**
-     * <code>optional .openxc.TranslatedMessage.Type type = 1;</code>
+     * <code>optional .openxc.ControlCommand.Type type = 1;</code>
      */
     boolean hasType();
     /**
-     * <code>optional .openxc.TranslatedMessage.Type type = 1;</code>
+     * <code>optional .openxc.ControlCommand.Type type = 1;</code>
      */
-    com.openxc.BinaryMessages.TranslatedMessage.Type getType();
+    com.openxc.BinaryMessages.ControlCommand.Type getType();
 
-    // optional string name = 2;
+    // optional .openxc.DiagnosticRequest diagnostic_request = 2;
     /**
-     * <code>optional string name = 2;</code>
+     * <code>optional .openxc.DiagnosticRequest diagnostic_request = 2;</code>
+     */
+    boolean hasDiagnosticRequest();
+    /**
+     * <code>optional .openxc.DiagnosticRequest diagnostic_request = 2;</code>
+     */
+    com.openxc.BinaryMessages.DiagnosticRequest getDiagnosticRequest();
+    /**
+     * <code>optional .openxc.DiagnosticRequest diagnostic_request = 2;</code>
+     */
+    com.openxc.BinaryMessages.DiagnosticRequestOrBuilder getDiagnosticRequestOrBuilder();
+  }
+  /**
+   * Protobuf type {@code openxc.ControlCommand}
+   */
+  public static final class ControlCommand extends
+      com.google.protobuf.GeneratedMessage
+      implements ControlCommandOrBuilder {
+    // Use ControlCommand.newBuilder() to construct.
+    private ControlCommand(com.google.protobuf.GeneratedMessage.Builder<?> builder) {
+      super(builder);
+      this.unknownFields = builder.getUnknownFields();
+    }
+    private ControlCommand(boolean noInit) { this.unknownFields = com.google.protobuf.UnknownFieldSet.getDefaultInstance(); }
+
+    private static final ControlCommand defaultInstance;
+    public static ControlCommand getDefaultInstance() {
+      return defaultInstance;
+    }
+
+    public ControlCommand getDefaultInstanceForType() {
+      return defaultInstance;
+    }
+
+    private final com.google.protobuf.UnknownFieldSet unknownFields;
+    @java.lang.Override
+    public final com.google.protobuf.UnknownFieldSet
+        getUnknownFields() {
+      return this.unknownFields;
+    }
+    private ControlCommand(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      initFields();
+      int mutable_bitField0_ = 0;
+      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder();
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            default: {
+              if (!parseUnknownField(input, unknownFields,
+                                     extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+            case 8: {
+              int rawValue = input.readEnum();
+              com.openxc.BinaryMessages.ControlCommand.Type value = com.openxc.BinaryMessages.ControlCommand.Type.valueOf(rawValue);
+              if (value == null) {
+                unknownFields.mergeVarintField(1, rawValue);
+              } else {
+                bitField0_ |= 0x00000001;
+                type_ = value;
+              }
+              break;
+            }
+            case 18: {
+              com.openxc.BinaryMessages.DiagnosticRequest.Builder subBuilder = null;
+              if (((bitField0_ & 0x00000002) == 0x00000002)) {
+                subBuilder = diagnosticRequest_.toBuilder();
+              }
+              diagnosticRequest_ = input.readMessage(com.openxc.BinaryMessages.DiagnosticRequest.PARSER, extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(diagnosticRequest_);
+                diagnosticRequest_ = subBuilder.buildPartial();
+              }
+              bitField0_ |= 0x00000002;
+              break;
+            }
+          }
+        }
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new com.google.protobuf.InvalidProtocolBufferException(
+            e.getMessage()).setUnfinishedMessage(this);
+      } finally {
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.openxc.BinaryMessages.internal_static_openxc_ControlCommand_descriptor;
+    }
+
+    protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.openxc.BinaryMessages.internal_static_openxc_ControlCommand_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.openxc.BinaryMessages.ControlCommand.class, com.openxc.BinaryMessages.ControlCommand.Builder.class);
+    }
+
+    public static com.google.protobuf.Parser<ControlCommand> PARSER =
+        new com.google.protobuf.AbstractParser<ControlCommand>() {
+      public ControlCommand parsePartialFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return new ControlCommand(input, extensionRegistry);
+      }
+    };
+
+    @java.lang.Override
+    public com.google.protobuf.Parser<ControlCommand> getParserForType() {
+      return PARSER;
+    }
+
+    /**
+     * Protobuf enum {@code openxc.ControlCommand.Type}
+     */
+    public enum Type
+        implements com.google.protobuf.ProtocolMessageEnum {
+      /**
+       * <code>VERSION = 1;</code>
+       */
+      VERSION(0, 1),
+      /**
+       * <code>DEVICE_ID = 2;</code>
+       */
+      DEVICE_ID(1, 2),
+      /**
+       * <code>DIAGNOSTIC = 3;</code>
+       */
+      DIAGNOSTIC(2, 3),
+      ;
+
+      /**
+       * <code>VERSION = 1;</code>
+       */
+      public static final int VERSION_VALUE = 1;
+      /**
+       * <code>DEVICE_ID = 2;</code>
+       */
+      public static final int DEVICE_ID_VALUE = 2;
+      /**
+       * <code>DIAGNOSTIC = 3;</code>
+       */
+      public static final int DIAGNOSTIC_VALUE = 3;
+
+
+      public final int getNumber() { return value; }
+
+      public static Type valueOf(int value) {
+        switch (value) {
+          case 1: return VERSION;
+          case 2: return DEVICE_ID;
+          case 3: return DIAGNOSTIC;
+          default: return null;
+        }
+      }
+
+      public static com.google.protobuf.Internal.EnumLiteMap<Type>
+          internalGetValueMap() {
+        return internalValueMap;
+      }
+      private static com.google.protobuf.Internal.EnumLiteMap<Type>
+          internalValueMap =
+            new com.google.protobuf.Internal.EnumLiteMap<Type>() {
+              public Type findValueByNumber(int number) {
+                return Type.valueOf(number);
+              }
+            };
+
+      public final com.google.protobuf.Descriptors.EnumValueDescriptor
+          getValueDescriptor() {
+        return getDescriptor().getValues().get(index);
+      }
+      public final com.google.protobuf.Descriptors.EnumDescriptor
+          getDescriptorForType() {
+        return getDescriptor();
+      }
+      public static final com.google.protobuf.Descriptors.EnumDescriptor
+          getDescriptor() {
+        return com.openxc.BinaryMessages.ControlCommand.getDescriptor().getEnumTypes().get(0);
+      }
+
+      private static final Type[] VALUES = values();
+
+      public static Type valueOf(
+          com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+        if (desc.getType() != getDescriptor()) {
+          throw new java.lang.IllegalArgumentException(
+            "EnumValueDescriptor is not for this type.");
+        }
+        return VALUES[desc.getIndex()];
+      }
+
+      private final int index;
+      private final int value;
+
+      private Type(int index, int value) {
+        this.index = index;
+        this.value = value;
+      }
+
+      // @@protoc_insertion_point(enum_scope:openxc.ControlCommand.Type)
+    }
+
+    private int bitField0_;
+    // optional .openxc.ControlCommand.Type type = 1;
+    public static final int TYPE_FIELD_NUMBER = 1;
+    private com.openxc.BinaryMessages.ControlCommand.Type type_;
+    /**
+     * <code>optional .openxc.ControlCommand.Type type = 1;</code>
+     */
+    public boolean hasType() {
+      return ((bitField0_ & 0x00000001) == 0x00000001);
+    }
+    /**
+     * <code>optional .openxc.ControlCommand.Type type = 1;</code>
+     */
+    public com.openxc.BinaryMessages.ControlCommand.Type getType() {
+      return type_;
+    }
+
+    // optional .openxc.DiagnosticRequest diagnostic_request = 2;
+    public static final int DIAGNOSTIC_REQUEST_FIELD_NUMBER = 2;
+    private com.openxc.BinaryMessages.DiagnosticRequest diagnosticRequest_;
+    /**
+     * <code>optional .openxc.DiagnosticRequest diagnostic_request = 2;</code>
+     */
+    public boolean hasDiagnosticRequest() {
+      return ((bitField0_ & 0x00000002) == 0x00000002);
+    }
+    /**
+     * <code>optional .openxc.DiagnosticRequest diagnostic_request = 2;</code>
+     */
+    public com.openxc.BinaryMessages.DiagnosticRequest getDiagnosticRequest() {
+      return diagnosticRequest_;
+    }
+    /**
+     * <code>optional .openxc.DiagnosticRequest diagnostic_request = 2;</code>
+     */
+    public com.openxc.BinaryMessages.DiagnosticRequestOrBuilder getDiagnosticRequestOrBuilder() {
+      return diagnosticRequest_;
+    }
+
+    private void initFields() {
+      type_ = com.openxc.BinaryMessages.ControlCommand.Type.VERSION;
+      diagnosticRequest_ = com.openxc.BinaryMessages.DiagnosticRequest.getDefaultInstance();
+    }
+    private byte memoizedIsInitialized = -1;
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized != -1) return isInitialized == 1;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    public void writeTo(com.google.protobuf.CodedOutputStream output)
+                        throws java.io.IOException {
+      getSerializedSize();
+      if (((bitField0_ & 0x00000001) == 0x00000001)) {
+        output.writeEnum(1, type_.getNumber());
+      }
+      if (((bitField0_ & 0x00000002) == 0x00000002)) {
+        output.writeMessage(2, diagnosticRequest_);
+      }
+      getUnknownFields().writeTo(output);
+    }
+
+    private int memoizedSerializedSize = -1;
+    public int getSerializedSize() {
+      int size = memoizedSerializedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (((bitField0_ & 0x00000001) == 0x00000001)) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeEnumSize(1, type_.getNumber());
+      }
+      if (((bitField0_ & 0x00000002) == 0x00000002)) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeMessageSize(2, diagnosticRequest_);
+      }
+      size += getUnknownFields().getSerializedSize();
+      memoizedSerializedSize = size;
+      return size;
+    }
+
+    private static final long serialVersionUID = 0L;
+    @java.lang.Override
+    protected java.lang.Object writeReplace()
+        throws java.io.ObjectStreamException {
+      return super.writeReplace();
+    }
+
+    public static com.openxc.BinaryMessages.ControlCommand parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static com.openxc.BinaryMessages.ControlCommand parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static com.openxc.BinaryMessages.ControlCommand parseFrom(byte[] data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static com.openxc.BinaryMessages.ControlCommand parseFrom(
+        byte[] data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static com.openxc.BinaryMessages.ControlCommand parseFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return PARSER.parseFrom(input);
+    }
+    public static com.openxc.BinaryMessages.ControlCommand parseFrom(
+        java.io.InputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return PARSER.parseFrom(input, extensionRegistry);
+    }
+    public static com.openxc.BinaryMessages.ControlCommand parseDelimitedFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return PARSER.parseDelimitedFrom(input);
+    }
+    public static com.openxc.BinaryMessages.ControlCommand parseDelimitedFrom(
+        java.io.InputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return PARSER.parseDelimitedFrom(input, extensionRegistry);
+    }
+    public static com.openxc.BinaryMessages.ControlCommand parseFrom(
+        com.google.protobuf.CodedInputStream input)
+        throws java.io.IOException {
+      return PARSER.parseFrom(input);
+    }
+    public static com.openxc.BinaryMessages.ControlCommand parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return PARSER.parseFrom(input, extensionRegistry);
+    }
+
+    public static Builder newBuilder() { return Builder.create(); }
+    public Builder newBuilderForType() { return newBuilder(); }
+    public static Builder newBuilder(com.openxc.BinaryMessages.ControlCommand prototype) {
+      return newBuilder().mergeFrom(prototype);
+    }
+    public Builder toBuilder() { return newBuilder(this); }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessage.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     * Protobuf type {@code openxc.ControlCommand}
+     */
+    public static final class Builder extends
+        com.google.protobuf.GeneratedMessage.Builder<Builder>
+       implements com.openxc.BinaryMessages.ControlCommandOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor
+          getDescriptor() {
+        return com.openxc.BinaryMessages.internal_static_openxc_ControlCommand_descriptor;
+      }
+
+      protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.openxc.BinaryMessages.internal_static_openxc_ControlCommand_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.openxc.BinaryMessages.ControlCommand.class, com.openxc.BinaryMessages.ControlCommand.Builder.class);
+      }
+
+      // Construct using com.openxc.BinaryMessages.ControlCommand.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(
+          com.google.protobuf.GeneratedMessage.BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessage.alwaysUseFieldBuilders) {
+          getDiagnosticRequestFieldBuilder();
+        }
+      }
+      private static Builder create() {
+        return new Builder();
+      }
+
+      public Builder clear() {
+        super.clear();
+        type_ = com.openxc.BinaryMessages.ControlCommand.Type.VERSION;
+        bitField0_ = (bitField0_ & ~0x00000001);
+        if (diagnosticRequestBuilder_ == null) {
+          diagnosticRequest_ = com.openxc.BinaryMessages.DiagnosticRequest.getDefaultInstance();
+        } else {
+          diagnosticRequestBuilder_.clear();
+        }
+        bitField0_ = (bitField0_ & ~0x00000002);
+        return this;
+      }
+
+      public Builder clone() {
+        return create().mergeFrom(buildPartial());
+      }
+
+      public com.google.protobuf.Descriptors.Descriptor
+          getDescriptorForType() {
+        return com.openxc.BinaryMessages.internal_static_openxc_ControlCommand_descriptor;
+      }
+
+      public com.openxc.BinaryMessages.ControlCommand getDefaultInstanceForType() {
+        return com.openxc.BinaryMessages.ControlCommand.getDefaultInstance();
+      }
+
+      public com.openxc.BinaryMessages.ControlCommand build() {
+        com.openxc.BinaryMessages.ControlCommand result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      public com.openxc.BinaryMessages.ControlCommand buildPartial() {
+        com.openxc.BinaryMessages.ControlCommand result = new com.openxc.BinaryMessages.ControlCommand(this);
+        int from_bitField0_ = bitField0_;
+        int to_bitField0_ = 0;
+        if (((from_bitField0_ & 0x00000001) == 0x00000001)) {
+          to_bitField0_ |= 0x00000001;
+        }
+        result.type_ = type_;
+        if (((from_bitField0_ & 0x00000002) == 0x00000002)) {
+          to_bitField0_ |= 0x00000002;
+        }
+        if (diagnosticRequestBuilder_ == null) {
+          result.diagnosticRequest_ = diagnosticRequest_;
+        } else {
+          result.diagnosticRequest_ = diagnosticRequestBuilder_.build();
+        }
+        result.bitField0_ = to_bitField0_;
+        onBuilt();
+        return result;
+      }
+
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof com.openxc.BinaryMessages.ControlCommand) {
+          return mergeFrom((com.openxc.BinaryMessages.ControlCommand)other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(com.openxc.BinaryMessages.ControlCommand other) {
+        if (other == com.openxc.BinaryMessages.ControlCommand.getDefaultInstance()) return this;
+        if (other.hasType()) {
+          setType(other.getType());
+        }
+        if (other.hasDiagnosticRequest()) {
+          mergeDiagnosticRequest(other.getDiagnosticRequest());
+        }
+        this.mergeUnknownFields(other.getUnknownFields());
+        return this;
+      }
+
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        com.openxc.BinaryMessages.ControlCommand parsedMessage = null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage = (com.openxc.BinaryMessages.ControlCommand) e.getUnfinishedMessage();
+          throw e;
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+      private int bitField0_;
+
+      // optional .openxc.ControlCommand.Type type = 1;
+      private com.openxc.BinaryMessages.ControlCommand.Type type_ = com.openxc.BinaryMessages.ControlCommand.Type.VERSION;
+      /**
+       * <code>optional .openxc.ControlCommand.Type type = 1;</code>
+       */
+      public boolean hasType() {
+        return ((bitField0_ & 0x00000001) == 0x00000001);
+      }
+      /**
+       * <code>optional .openxc.ControlCommand.Type type = 1;</code>
+       */
+      public com.openxc.BinaryMessages.ControlCommand.Type getType() {
+        return type_;
+      }
+      /**
+       * <code>optional .openxc.ControlCommand.Type type = 1;</code>
+       */
+      public Builder setType(com.openxc.BinaryMessages.ControlCommand.Type value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        bitField0_ |= 0x00000001;
+        type_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>optional .openxc.ControlCommand.Type type = 1;</code>
+       */
+      public Builder clearType() {
+        bitField0_ = (bitField0_ & ~0x00000001);
+        type_ = com.openxc.BinaryMessages.ControlCommand.Type.VERSION;
+        onChanged();
+        return this;
+      }
+
+      // optional .openxc.DiagnosticRequest diagnostic_request = 2;
+      private com.openxc.BinaryMessages.DiagnosticRequest diagnosticRequest_ = com.openxc.BinaryMessages.DiagnosticRequest.getDefaultInstance();
+      private com.google.protobuf.SingleFieldBuilder<
+          com.openxc.BinaryMessages.DiagnosticRequest, com.openxc.BinaryMessages.DiagnosticRequest.Builder, com.openxc.BinaryMessages.DiagnosticRequestOrBuilder> diagnosticRequestBuilder_;
+      /**
+       * <code>optional .openxc.DiagnosticRequest diagnostic_request = 2;</code>
+       */
+      public boolean hasDiagnosticRequest() {
+        return ((bitField0_ & 0x00000002) == 0x00000002);
+      }
+      /**
+       * <code>optional .openxc.DiagnosticRequest diagnostic_request = 2;</code>
+       */
+      public com.openxc.BinaryMessages.DiagnosticRequest getDiagnosticRequest() {
+        if (diagnosticRequestBuilder_ == null) {
+          return diagnosticRequest_;
+        } else {
+          return diagnosticRequestBuilder_.getMessage();
+        }
+      }
+      /**
+       * <code>optional .openxc.DiagnosticRequest diagnostic_request = 2;</code>
+       */
+      public Builder setDiagnosticRequest(com.openxc.BinaryMessages.DiagnosticRequest value) {
+        if (diagnosticRequestBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          diagnosticRequest_ = value;
+          onChanged();
+        } else {
+          diagnosticRequestBuilder_.setMessage(value);
+        }
+        bitField0_ |= 0x00000002;
+        return this;
+      }
+      /**
+       * <code>optional .openxc.DiagnosticRequest diagnostic_request = 2;</code>
+       */
+      public Builder setDiagnosticRequest(
+          com.openxc.BinaryMessages.DiagnosticRequest.Builder builderForValue) {
+        if (diagnosticRequestBuilder_ == null) {
+          diagnosticRequest_ = builderForValue.build();
+          onChanged();
+        } else {
+          diagnosticRequestBuilder_.setMessage(builderForValue.build());
+        }
+        bitField0_ |= 0x00000002;
+        return this;
+      }
+      /**
+       * <code>optional .openxc.DiagnosticRequest diagnostic_request = 2;</code>
+       */
+      public Builder mergeDiagnosticRequest(com.openxc.BinaryMessages.DiagnosticRequest value) {
+        if (diagnosticRequestBuilder_ == null) {
+          if (((bitField0_ & 0x00000002) == 0x00000002) &&
+              diagnosticRequest_ != com.openxc.BinaryMessages.DiagnosticRequest.getDefaultInstance()) {
+            diagnosticRequest_ =
+              com.openxc.BinaryMessages.DiagnosticRequest.newBuilder(diagnosticRequest_).mergeFrom(value).buildPartial();
+          } else {
+            diagnosticRequest_ = value;
+          }
+          onChanged();
+        } else {
+          diagnosticRequestBuilder_.mergeFrom(value);
+        }
+        bitField0_ |= 0x00000002;
+        return this;
+      }
+      /**
+       * <code>optional .openxc.DiagnosticRequest diagnostic_request = 2;</code>
+       */
+      public Builder clearDiagnosticRequest() {
+        if (diagnosticRequestBuilder_ == null) {
+          diagnosticRequest_ = com.openxc.BinaryMessages.DiagnosticRequest.getDefaultInstance();
+          onChanged();
+        } else {
+          diagnosticRequestBuilder_.clear();
+        }
+        bitField0_ = (bitField0_ & ~0x00000002);
+        return this;
+      }
+      /**
+       * <code>optional .openxc.DiagnosticRequest diagnostic_request = 2;</code>
+       */
+      public com.openxc.BinaryMessages.DiagnosticRequest.Builder getDiagnosticRequestBuilder() {
+        bitField0_ |= 0x00000002;
+        onChanged();
+        return getDiagnosticRequestFieldBuilder().getBuilder();
+      }
+      /**
+       * <code>optional .openxc.DiagnosticRequest diagnostic_request = 2;</code>
+       */
+      public com.openxc.BinaryMessages.DiagnosticRequestOrBuilder getDiagnosticRequestOrBuilder() {
+        if (diagnosticRequestBuilder_ != null) {
+          return diagnosticRequestBuilder_.getMessageOrBuilder();
+        } else {
+          return diagnosticRequest_;
+        }
+      }
+      /**
+       * <code>optional .openxc.DiagnosticRequest diagnostic_request = 2;</code>
+       */
+      private com.google.protobuf.SingleFieldBuilder<
+          com.openxc.BinaryMessages.DiagnosticRequest, com.openxc.BinaryMessages.DiagnosticRequest.Builder, com.openxc.BinaryMessages.DiagnosticRequestOrBuilder> 
+          getDiagnosticRequestFieldBuilder() {
+        if (diagnosticRequestBuilder_ == null) {
+          diagnosticRequestBuilder_ = new com.google.protobuf.SingleFieldBuilder<
+              com.openxc.BinaryMessages.DiagnosticRequest, com.openxc.BinaryMessages.DiagnosticRequest.Builder, com.openxc.BinaryMessages.DiagnosticRequestOrBuilder>(
+                  diagnosticRequest_,
+                  getParentForChildren(),
+                  isClean());
+          diagnosticRequest_ = null;
+        }
+        return diagnosticRequestBuilder_;
+      }
+
+      // @@protoc_insertion_point(builder_scope:openxc.ControlCommand)
+    }
+
+    static {
+      defaultInstance = new ControlCommand(true);
+      defaultInstance.initFields();
+    }
+
+    // @@protoc_insertion_point(class_scope:openxc.ControlCommand)
+  }
+
+  public interface CommandResponseOrBuilder
+      extends com.google.protobuf.MessageOrBuilder {
+
+    // optional .openxc.ControlCommand.Type type = 1;
+    /**
+     * <code>optional .openxc.ControlCommand.Type type = 1;</code>
+     */
+    boolean hasType();
+    /**
+     * <code>optional .openxc.ControlCommand.Type type = 1;</code>
+     */
+    com.openxc.BinaryMessages.ControlCommand.Type getType();
+
+    // optional string message = 2;
+    /**
+     * <code>optional string message = 2;</code>
+     */
+    boolean hasMessage();
+    /**
+     * <code>optional string message = 2;</code>
+     */
+    java.lang.String getMessage();
+    /**
+     * <code>optional string message = 2;</code>
+     */
+    com.google.protobuf.ByteString
+        getMessageBytes();
+  }
+  /**
+   * Protobuf type {@code openxc.CommandResponse}
+   */
+  public static final class CommandResponse extends
+      com.google.protobuf.GeneratedMessage
+      implements CommandResponseOrBuilder {
+    // Use CommandResponse.newBuilder() to construct.
+    private CommandResponse(com.google.protobuf.GeneratedMessage.Builder<?> builder) {
+      super(builder);
+      this.unknownFields = builder.getUnknownFields();
+    }
+    private CommandResponse(boolean noInit) { this.unknownFields = com.google.protobuf.UnknownFieldSet.getDefaultInstance(); }
+
+    private static final CommandResponse defaultInstance;
+    public static CommandResponse getDefaultInstance() {
+      return defaultInstance;
+    }
+
+    public CommandResponse getDefaultInstanceForType() {
+      return defaultInstance;
+    }
+
+    private final com.google.protobuf.UnknownFieldSet unknownFields;
+    @java.lang.Override
+    public final com.google.protobuf.UnknownFieldSet
+        getUnknownFields() {
+      return this.unknownFields;
+    }
+    private CommandResponse(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      initFields();
+      int mutable_bitField0_ = 0;
+      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder();
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            default: {
+              if (!parseUnknownField(input, unknownFields,
+                                     extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+            case 8: {
+              int rawValue = input.readEnum();
+              com.openxc.BinaryMessages.ControlCommand.Type value = com.openxc.BinaryMessages.ControlCommand.Type.valueOf(rawValue);
+              if (value == null) {
+                unknownFields.mergeVarintField(1, rawValue);
+              } else {
+                bitField0_ |= 0x00000001;
+                type_ = value;
+              }
+              break;
+            }
+            case 18: {
+              bitField0_ |= 0x00000002;
+              message_ = input.readBytes();
+              break;
+            }
+          }
+        }
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new com.google.protobuf.InvalidProtocolBufferException(
+            e.getMessage()).setUnfinishedMessage(this);
+      } finally {
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.openxc.BinaryMessages.internal_static_openxc_CommandResponse_descriptor;
+    }
+
+    protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.openxc.BinaryMessages.internal_static_openxc_CommandResponse_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.openxc.BinaryMessages.CommandResponse.class, com.openxc.BinaryMessages.CommandResponse.Builder.class);
+    }
+
+    public static com.google.protobuf.Parser<CommandResponse> PARSER =
+        new com.google.protobuf.AbstractParser<CommandResponse>() {
+      public CommandResponse parsePartialFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return new CommandResponse(input, extensionRegistry);
+      }
+    };
+
+    @java.lang.Override
+    public com.google.protobuf.Parser<CommandResponse> getParserForType() {
+      return PARSER;
+    }
+
+    private int bitField0_;
+    // optional .openxc.ControlCommand.Type type = 1;
+    public static final int TYPE_FIELD_NUMBER = 1;
+    private com.openxc.BinaryMessages.ControlCommand.Type type_;
+    /**
+     * <code>optional .openxc.ControlCommand.Type type = 1;</code>
+     */
+    public boolean hasType() {
+      return ((bitField0_ & 0x00000001) == 0x00000001);
+    }
+    /**
+     * <code>optional .openxc.ControlCommand.Type type = 1;</code>
+     */
+    public com.openxc.BinaryMessages.ControlCommand.Type getType() {
+      return type_;
+    }
+
+    // optional string message = 2;
+    public static final int MESSAGE_FIELD_NUMBER = 2;
+    private java.lang.Object message_;
+    /**
+     * <code>optional string message = 2;</code>
+     */
+    public boolean hasMessage() {
+      return ((bitField0_ & 0x00000002) == 0x00000002);
+    }
+    /**
+     * <code>optional string message = 2;</code>
+     */
+    public java.lang.String getMessage() {
+      java.lang.Object ref = message_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = 
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        if (bs.isValidUtf8()) {
+          message_ = s;
+        }
+        return s;
+      }
+    }
+    /**
+     * <code>optional string message = 2;</code>
+     */
+    public com.google.protobuf.ByteString
+        getMessageBytes() {
+      java.lang.Object ref = message_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        message_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+
+    private void initFields() {
+      type_ = com.openxc.BinaryMessages.ControlCommand.Type.VERSION;
+      message_ = "";
+    }
+    private byte memoizedIsInitialized = -1;
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized != -1) return isInitialized == 1;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    public void writeTo(com.google.protobuf.CodedOutputStream output)
+                        throws java.io.IOException {
+      getSerializedSize();
+      if (((bitField0_ & 0x00000001) == 0x00000001)) {
+        output.writeEnum(1, type_.getNumber());
+      }
+      if (((bitField0_ & 0x00000002) == 0x00000002)) {
+        output.writeBytes(2, getMessageBytes());
+      }
+      getUnknownFields().writeTo(output);
+    }
+
+    private int memoizedSerializedSize = -1;
+    public int getSerializedSize() {
+      int size = memoizedSerializedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (((bitField0_ & 0x00000001) == 0x00000001)) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeEnumSize(1, type_.getNumber());
+      }
+      if (((bitField0_ & 0x00000002) == 0x00000002)) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeBytesSize(2, getMessageBytes());
+      }
+      size += getUnknownFields().getSerializedSize();
+      memoizedSerializedSize = size;
+      return size;
+    }
+
+    private static final long serialVersionUID = 0L;
+    @java.lang.Override
+    protected java.lang.Object writeReplace()
+        throws java.io.ObjectStreamException {
+      return super.writeReplace();
+    }
+
+    public static com.openxc.BinaryMessages.CommandResponse parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static com.openxc.BinaryMessages.CommandResponse parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static com.openxc.BinaryMessages.CommandResponse parseFrom(byte[] data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static com.openxc.BinaryMessages.CommandResponse parseFrom(
+        byte[] data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static com.openxc.BinaryMessages.CommandResponse parseFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return PARSER.parseFrom(input);
+    }
+    public static com.openxc.BinaryMessages.CommandResponse parseFrom(
+        java.io.InputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return PARSER.parseFrom(input, extensionRegistry);
+    }
+    public static com.openxc.BinaryMessages.CommandResponse parseDelimitedFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return PARSER.parseDelimitedFrom(input);
+    }
+    public static com.openxc.BinaryMessages.CommandResponse parseDelimitedFrom(
+        java.io.InputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return PARSER.parseDelimitedFrom(input, extensionRegistry);
+    }
+    public static com.openxc.BinaryMessages.CommandResponse parseFrom(
+        com.google.protobuf.CodedInputStream input)
+        throws java.io.IOException {
+      return PARSER.parseFrom(input);
+    }
+    public static com.openxc.BinaryMessages.CommandResponse parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return PARSER.parseFrom(input, extensionRegistry);
+    }
+
+    public static Builder newBuilder() { return Builder.create(); }
+    public Builder newBuilderForType() { return newBuilder(); }
+    public static Builder newBuilder(com.openxc.BinaryMessages.CommandResponse prototype) {
+      return newBuilder().mergeFrom(prototype);
+    }
+    public Builder toBuilder() { return newBuilder(this); }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessage.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     * Protobuf type {@code openxc.CommandResponse}
+     */
+    public static final class Builder extends
+        com.google.protobuf.GeneratedMessage.Builder<Builder>
+       implements com.openxc.BinaryMessages.CommandResponseOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor
+          getDescriptor() {
+        return com.openxc.BinaryMessages.internal_static_openxc_CommandResponse_descriptor;
+      }
+
+      protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.openxc.BinaryMessages.internal_static_openxc_CommandResponse_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.openxc.BinaryMessages.CommandResponse.class, com.openxc.BinaryMessages.CommandResponse.Builder.class);
+      }
+
+      // Construct using com.openxc.BinaryMessages.CommandResponse.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(
+          com.google.protobuf.GeneratedMessage.BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessage.alwaysUseFieldBuilders) {
+        }
+      }
+      private static Builder create() {
+        return new Builder();
+      }
+
+      public Builder clear() {
+        super.clear();
+        type_ = com.openxc.BinaryMessages.ControlCommand.Type.VERSION;
+        bitField0_ = (bitField0_ & ~0x00000001);
+        message_ = "";
+        bitField0_ = (bitField0_ & ~0x00000002);
+        return this;
+      }
+
+      public Builder clone() {
+        return create().mergeFrom(buildPartial());
+      }
+
+      public com.google.protobuf.Descriptors.Descriptor
+          getDescriptorForType() {
+        return com.openxc.BinaryMessages.internal_static_openxc_CommandResponse_descriptor;
+      }
+
+      public com.openxc.BinaryMessages.CommandResponse getDefaultInstanceForType() {
+        return com.openxc.BinaryMessages.CommandResponse.getDefaultInstance();
+      }
+
+      public com.openxc.BinaryMessages.CommandResponse build() {
+        com.openxc.BinaryMessages.CommandResponse result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      public com.openxc.BinaryMessages.CommandResponse buildPartial() {
+        com.openxc.BinaryMessages.CommandResponse result = new com.openxc.BinaryMessages.CommandResponse(this);
+        int from_bitField0_ = bitField0_;
+        int to_bitField0_ = 0;
+        if (((from_bitField0_ & 0x00000001) == 0x00000001)) {
+          to_bitField0_ |= 0x00000001;
+        }
+        result.type_ = type_;
+        if (((from_bitField0_ & 0x00000002) == 0x00000002)) {
+          to_bitField0_ |= 0x00000002;
+        }
+        result.message_ = message_;
+        result.bitField0_ = to_bitField0_;
+        onBuilt();
+        return result;
+      }
+
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof com.openxc.BinaryMessages.CommandResponse) {
+          return mergeFrom((com.openxc.BinaryMessages.CommandResponse)other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(com.openxc.BinaryMessages.CommandResponse other) {
+        if (other == com.openxc.BinaryMessages.CommandResponse.getDefaultInstance()) return this;
+        if (other.hasType()) {
+          setType(other.getType());
+        }
+        if (other.hasMessage()) {
+          bitField0_ |= 0x00000002;
+          message_ = other.message_;
+          onChanged();
+        }
+        this.mergeUnknownFields(other.getUnknownFields());
+        return this;
+      }
+
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        com.openxc.BinaryMessages.CommandResponse parsedMessage = null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage = (com.openxc.BinaryMessages.CommandResponse) e.getUnfinishedMessage();
+          throw e;
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+      private int bitField0_;
+
+      // optional .openxc.ControlCommand.Type type = 1;
+      private com.openxc.BinaryMessages.ControlCommand.Type type_ = com.openxc.BinaryMessages.ControlCommand.Type.VERSION;
+      /**
+       * <code>optional .openxc.ControlCommand.Type type = 1;</code>
+       */
+      public boolean hasType() {
+        return ((bitField0_ & 0x00000001) == 0x00000001);
+      }
+      /**
+       * <code>optional .openxc.ControlCommand.Type type = 1;</code>
+       */
+      public com.openxc.BinaryMessages.ControlCommand.Type getType() {
+        return type_;
+      }
+      /**
+       * <code>optional .openxc.ControlCommand.Type type = 1;</code>
+       */
+      public Builder setType(com.openxc.BinaryMessages.ControlCommand.Type value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        bitField0_ |= 0x00000001;
+        type_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>optional .openxc.ControlCommand.Type type = 1;</code>
+       */
+      public Builder clearType() {
+        bitField0_ = (bitField0_ & ~0x00000001);
+        type_ = com.openxc.BinaryMessages.ControlCommand.Type.VERSION;
+        onChanged();
+        return this;
+      }
+
+      // optional string message = 2;
+      private java.lang.Object message_ = "";
+      /**
+       * <code>optional string message = 2;</code>
+       */
+      public boolean hasMessage() {
+        return ((bitField0_ & 0x00000002) == 0x00000002);
+      }
+      /**
+       * <code>optional string message = 2;</code>
+       */
+      public java.lang.String getMessage() {
+        java.lang.Object ref = message_;
+        if (!(ref instanceof java.lang.String)) {
+          java.lang.String s = ((com.google.protobuf.ByteString) ref)
+              .toStringUtf8();
+          message_ = s;
+          return s;
+        } else {
+          return (java.lang.String) ref;
+        }
+      }
+      /**
+       * <code>optional string message = 2;</code>
+       */
+      public com.google.protobuf.ByteString
+          getMessageBytes() {
+        java.lang.Object ref = message_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b = 
+              com.google.protobuf.ByteString.copyFromUtf8(
+                  (java.lang.String) ref);
+          message_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+      /**
+       * <code>optional string message = 2;</code>
+       */
+      public Builder setMessage(
+          java.lang.String value) {
+        if (value == null) {
+    throw new NullPointerException();
+  }
+  bitField0_ |= 0x00000002;
+        message_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>optional string message = 2;</code>
+       */
+      public Builder clearMessage() {
+        bitField0_ = (bitField0_ & ~0x00000002);
+        message_ = getDefaultInstance().getMessage();
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>optional string message = 2;</code>
+       */
+      public Builder setMessageBytes(
+          com.google.protobuf.ByteString value) {
+        if (value == null) {
+    throw new NullPointerException();
+  }
+  bitField0_ |= 0x00000002;
+        message_ = value;
+        onChanged();
+        return this;
+      }
+
+      // @@protoc_insertion_point(builder_scope:openxc.CommandResponse)
+    }
+
+    static {
+      defaultInstance = new CommandResponse(true);
+      defaultInstance.initFields();
+    }
+
+    // @@protoc_insertion_point(class_scope:openxc.CommandResponse)
+  }
+
+  public interface DiagnosticRequestOrBuilder
+      extends com.google.protobuf.MessageOrBuilder {
+
+    // optional int32 bus = 1;
+    /**
+     * <code>optional int32 bus = 1;</code>
+     */
+    boolean hasBus();
+    /**
+     * <code>optional int32 bus = 1;</code>
+     */
+    int getBus();
+
+    // optional uint32 message_id = 2;
+    /**
+     * <code>optional uint32 message_id = 2;</code>
+     */
+    boolean hasMessageId();
+    /**
+     * <code>optional uint32 message_id = 2;</code>
+     */
+    int getMessageId();
+
+    // optional uint32 mode = 3;
+    /**
+     * <code>optional uint32 mode = 3;</code>
+     */
+    boolean hasMode();
+    /**
+     * <code>optional uint32 mode = 3;</code>
+     */
+    int getMode();
+
+    // optional uint32 pid = 4;
+    /**
+     * <code>optional uint32 pid = 4;</code>
+     */
+    boolean hasPid();
+    /**
+     * <code>optional uint32 pid = 4;</code>
+     */
+    int getPid();
+
+    // optional bytes payload = 5;
+    /**
+     * <code>optional bytes payload = 5;</code>
+     *
+     * <pre>
+     * TODO we are capping this at 8 bytes for now - need to change when we
+     * support multi-frame responses
+     * </pre>
+     */
+    boolean hasPayload();
+    /**
+     * <code>optional bytes payload = 5;</code>
+     *
+     * <pre>
+     * TODO we are capping this at 8 bytes for now - need to change when we
+     * support multi-frame responses
+     * </pre>
+     */
+    com.google.protobuf.ByteString getPayload();
+
+    // optional bool multiple_responses = 6;
+    /**
+     * <code>optional bool multiple_responses = 6;</code>
+     */
+    boolean hasMultipleResponses();
+    /**
+     * <code>optional bool multiple_responses = 6;</code>
+     */
+    boolean getMultipleResponses();
+
+    // optional double frequency = 7;
+    /**
+     * <code>optional double frequency = 7;</code>
+     */
+    boolean hasFrequency();
+    /**
+     * <code>optional double frequency = 7;</code>
+     */
+    double getFrequency();
+
+    // optional string name = 8;
+    /**
+     * <code>optional string name = 8;</code>
      */
     boolean hasName();
     /**
-     * <code>optional string name = 2;</code>
+     * <code>optional string name = 8;</code>
      */
     java.lang.String getName();
     /**
-     * <code>optional string name = 2;</code>
+     * <code>optional string name = 8;</code>
      */
     com.google.protobuf.ByteString
         getNameBytes();
 
-    // optional string string_value = 3;
+    // optional .openxc.DiagnosticRequest.DecodedType decoded_type = 9;
+    /**
+     * <code>optional .openxc.DiagnosticRequest.DecodedType decoded_type = 9;</code>
+     */
+    boolean hasDecodedType();
+    /**
+     * <code>optional .openxc.DiagnosticRequest.DecodedType decoded_type = 9;</code>
+     */
+    com.openxc.BinaryMessages.DiagnosticRequest.DecodedType getDecodedType();
+  }
+  /**
+   * Protobuf type {@code openxc.DiagnosticRequest}
+   */
+  public static final class DiagnosticRequest extends
+      com.google.protobuf.GeneratedMessage
+      implements DiagnosticRequestOrBuilder {
+    // Use DiagnosticRequest.newBuilder() to construct.
+    private DiagnosticRequest(com.google.protobuf.GeneratedMessage.Builder<?> builder) {
+      super(builder);
+      this.unknownFields = builder.getUnknownFields();
+    }
+    private DiagnosticRequest(boolean noInit) { this.unknownFields = com.google.protobuf.UnknownFieldSet.getDefaultInstance(); }
+
+    private static final DiagnosticRequest defaultInstance;
+    public static DiagnosticRequest getDefaultInstance() {
+      return defaultInstance;
+    }
+
+    public DiagnosticRequest getDefaultInstanceForType() {
+      return defaultInstance;
+    }
+
+    private final com.google.protobuf.UnknownFieldSet unknownFields;
+    @java.lang.Override
+    public final com.google.protobuf.UnknownFieldSet
+        getUnknownFields() {
+      return this.unknownFields;
+    }
+    private DiagnosticRequest(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      initFields();
+      int mutable_bitField0_ = 0;
+      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder();
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            default: {
+              if (!parseUnknownField(input, unknownFields,
+                                     extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+            case 8: {
+              bitField0_ |= 0x00000001;
+              bus_ = input.readInt32();
+              break;
+            }
+            case 16: {
+              bitField0_ |= 0x00000002;
+              messageId_ = input.readUInt32();
+              break;
+            }
+            case 24: {
+              bitField0_ |= 0x00000004;
+              mode_ = input.readUInt32();
+              break;
+            }
+            case 32: {
+              bitField0_ |= 0x00000008;
+              pid_ = input.readUInt32();
+              break;
+            }
+            case 42: {
+              bitField0_ |= 0x00000010;
+              payload_ = input.readBytes();
+              break;
+            }
+            case 48: {
+              bitField0_ |= 0x00000020;
+              multipleResponses_ = input.readBool();
+              break;
+            }
+            case 57: {
+              bitField0_ |= 0x00000040;
+              frequency_ = input.readDouble();
+              break;
+            }
+            case 66: {
+              bitField0_ |= 0x00000080;
+              name_ = input.readBytes();
+              break;
+            }
+            case 72: {
+              int rawValue = input.readEnum();
+              com.openxc.BinaryMessages.DiagnosticRequest.DecodedType value = com.openxc.BinaryMessages.DiagnosticRequest.DecodedType.valueOf(rawValue);
+              if (value == null) {
+                unknownFields.mergeVarintField(9, rawValue);
+              } else {
+                bitField0_ |= 0x00000100;
+                decodedType_ = value;
+              }
+              break;
+            }
+          }
+        }
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new com.google.protobuf.InvalidProtocolBufferException(
+            e.getMessage()).setUnfinishedMessage(this);
+      } finally {
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.openxc.BinaryMessages.internal_static_openxc_DiagnosticRequest_descriptor;
+    }
+
+    protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.openxc.BinaryMessages.internal_static_openxc_DiagnosticRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.openxc.BinaryMessages.DiagnosticRequest.class, com.openxc.BinaryMessages.DiagnosticRequest.Builder.class);
+    }
+
+    public static com.google.protobuf.Parser<DiagnosticRequest> PARSER =
+        new com.google.protobuf.AbstractParser<DiagnosticRequest>() {
+      public DiagnosticRequest parsePartialFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return new DiagnosticRequest(input, extensionRegistry);
+      }
+    };
+
+    @java.lang.Override
+    public com.google.protobuf.Parser<DiagnosticRequest> getParserForType() {
+      return PARSER;
+    }
+
+    /**
+     * Protobuf enum {@code openxc.DiagnosticRequest.DecodedType}
+     */
+    public enum DecodedType
+        implements com.google.protobuf.ProtocolMessageEnum {
+      /**
+       * <code>NONE = 1;</code>
+       */
+      NONE(0, 1),
+      /**
+       * <code>OBD2 = 2;</code>
+       */
+      OBD2(1, 2),
+      ;
+
+      /**
+       * <code>NONE = 1;</code>
+       */
+      public static final int NONE_VALUE = 1;
+      /**
+       * <code>OBD2 = 2;</code>
+       */
+      public static final int OBD2_VALUE = 2;
+
+
+      public final int getNumber() { return value; }
+
+      public static DecodedType valueOf(int value) {
+        switch (value) {
+          case 1: return NONE;
+          case 2: return OBD2;
+          default: return null;
+        }
+      }
+
+      public static com.google.protobuf.Internal.EnumLiteMap<DecodedType>
+          internalGetValueMap() {
+        return internalValueMap;
+      }
+      private static com.google.protobuf.Internal.EnumLiteMap<DecodedType>
+          internalValueMap =
+            new com.google.protobuf.Internal.EnumLiteMap<DecodedType>() {
+              public DecodedType findValueByNumber(int number) {
+                return DecodedType.valueOf(number);
+              }
+            };
+
+      public final com.google.protobuf.Descriptors.EnumValueDescriptor
+          getValueDescriptor() {
+        return getDescriptor().getValues().get(index);
+      }
+      public final com.google.protobuf.Descriptors.EnumDescriptor
+          getDescriptorForType() {
+        return getDescriptor();
+      }
+      public static final com.google.protobuf.Descriptors.EnumDescriptor
+          getDescriptor() {
+        return com.openxc.BinaryMessages.DiagnosticRequest.getDescriptor().getEnumTypes().get(0);
+      }
+
+      private static final DecodedType[] VALUES = values();
+
+      public static DecodedType valueOf(
+          com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+        if (desc.getType() != getDescriptor()) {
+          throw new java.lang.IllegalArgumentException(
+            "EnumValueDescriptor is not for this type.");
+        }
+        return VALUES[desc.getIndex()];
+      }
+
+      private final int index;
+      private final int value;
+
+      private DecodedType(int index, int value) {
+        this.index = index;
+        this.value = value;
+      }
+
+      // @@protoc_insertion_point(enum_scope:openxc.DiagnosticRequest.DecodedType)
+    }
+
+    private int bitField0_;
+    // optional int32 bus = 1;
+    public static final int BUS_FIELD_NUMBER = 1;
+    private int bus_;
+    /**
+     * <code>optional int32 bus = 1;</code>
+     */
+    public boolean hasBus() {
+      return ((bitField0_ & 0x00000001) == 0x00000001);
+    }
+    /**
+     * <code>optional int32 bus = 1;</code>
+     */
+    public int getBus() {
+      return bus_;
+    }
+
+    // optional uint32 message_id = 2;
+    public static final int MESSAGE_ID_FIELD_NUMBER = 2;
+    private int messageId_;
+    /**
+     * <code>optional uint32 message_id = 2;</code>
+     */
+    public boolean hasMessageId() {
+      return ((bitField0_ & 0x00000002) == 0x00000002);
+    }
+    /**
+     * <code>optional uint32 message_id = 2;</code>
+     */
+    public int getMessageId() {
+      return messageId_;
+    }
+
+    // optional uint32 mode = 3;
+    public static final int MODE_FIELD_NUMBER = 3;
+    private int mode_;
+    /**
+     * <code>optional uint32 mode = 3;</code>
+     */
+    public boolean hasMode() {
+      return ((bitField0_ & 0x00000004) == 0x00000004);
+    }
+    /**
+     * <code>optional uint32 mode = 3;</code>
+     */
+    public int getMode() {
+      return mode_;
+    }
+
+    // optional uint32 pid = 4;
+    public static final int PID_FIELD_NUMBER = 4;
+    private int pid_;
+    /**
+     * <code>optional uint32 pid = 4;</code>
+     */
+    public boolean hasPid() {
+      return ((bitField0_ & 0x00000008) == 0x00000008);
+    }
     /**
-     * <code>optional string string_value = 3;</code>
+     * <code>optional uint32 pid = 4;</code>
+     */
+    public int getPid() {
+      return pid_;
+    }
+
+    // optional bytes payload = 5;
+    public static final int PAYLOAD_FIELD_NUMBER = 5;
+    private com.google.protobuf.ByteString payload_;
+    /**
+     * <code>optional bytes payload = 5;</code>
+     *
+     * <pre>
+     * TODO we are capping this at 8 bytes for now - need to change when we
+     * support multi-frame responses
+     * </pre>
+     */
+    public boolean hasPayload() {
+      return ((bitField0_ & 0x00000010) == 0x00000010);
+    }
+    /**
+     * <code>optional bytes payload = 5;</code>
+     *
+     * <pre>
+     * TODO we are capping this at 8 bytes for now - need to change when we
+     * support multi-frame responses
+     * </pre>
+     */
+    public com.google.protobuf.ByteString getPayload() {
+      return payload_;
+    }
+
+    // optional bool multiple_responses = 6;
+    public static final int MULTIPLE_RESPONSES_FIELD_NUMBER = 6;
+    private boolean multipleResponses_;
+    /**
+     * <code>optional bool multiple_responses = 6;</code>
+     */
+    public boolean hasMultipleResponses() {
+      return ((bitField0_ & 0x00000020) == 0x00000020);
+    }
+    /**
+     * <code>optional bool multiple_responses = 6;</code>
+     */
+    public boolean getMultipleResponses() {
+      return multipleResponses_;
+    }
+
+    // optional double frequency = 7;
+    public static final int FREQUENCY_FIELD_NUMBER = 7;
+    private double frequency_;
+    /**
+     * <code>optional double frequency = 7;</code>
+     */
+    public boolean hasFrequency() {
+      return ((bitField0_ & 0x00000040) == 0x00000040);
+    }
+    /**
+     * <code>optional double frequency = 7;</code>
+     */
+    public double getFrequency() {
+      return frequency_;
+    }
+
+    // optional string name = 8;
+    public static final int NAME_FIELD_NUMBER = 8;
+    private java.lang.Object name_;
+    /**
+     * <code>optional string name = 8;</code>
+     */
+    public boolean hasName() {
+      return ((bitField0_ & 0x00000080) == 0x00000080);
+    }
+    /**
+     * <code>optional string name = 8;</code>
+     */
+    public java.lang.String getName() {
+      java.lang.Object ref = name_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = 
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        if (bs.isValidUtf8()) {
+          name_ = s;
+        }
+        return s;
+      }
+    }
+    /**
+     * <code>optional string name = 8;</code>
+     */
+    public com.google.protobuf.ByteString
+        getNameBytes() {
+      java.lang.Object ref = name_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        name_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+
+    // optional .openxc.DiagnosticRequest.DecodedType decoded_type = 9;
+    public static final int DECODED_TYPE_FIELD_NUMBER = 9;
+    private com.openxc.BinaryMessages.DiagnosticRequest.DecodedType decodedType_;
+    /**
+     * <code>optional .openxc.DiagnosticRequest.DecodedType decoded_type = 9;</code>
+     */
+    public boolean hasDecodedType() {
+      return ((bitField0_ & 0x00000100) == 0x00000100);
+    }
+    /**
+     * <code>optional .openxc.DiagnosticRequest.DecodedType decoded_type = 9;</code>
+     */
+    public com.openxc.BinaryMessages.DiagnosticRequest.DecodedType getDecodedType() {
+      return decodedType_;
+    }
+
+    private void initFields() {
+      bus_ = 0;
+      messageId_ = 0;
+      mode_ = 0;
+      pid_ = 0;
+      payload_ = com.google.protobuf.ByteString.EMPTY;
+      multipleResponses_ = false;
+      frequency_ = 0D;
+      name_ = "";
+      decodedType_ = com.openxc.BinaryMessages.DiagnosticRequest.DecodedType.NONE;
+    }
+    private byte memoizedIsInitialized = -1;
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized != -1) return isInitialized == 1;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    public void writeTo(com.google.protobuf.CodedOutputStream output)
+                        throws java.io.IOException {
+      getSerializedSize();
+      if (((bitField0_ & 0x00000001) == 0x00000001)) {
+        output.writeInt32(1, bus_);
+      }
+      if (((bitField0_ & 0x00000002) == 0x00000002)) {
+        output.writeUInt32(2, messageId_);
+      }
+      if (((bitField0_ & 0x00000004) == 0x00000004)) {
+        output.writeUInt32(3, mode_);
+      }
+      if (((bitField0_ & 0x00000008) == 0x00000008)) {
+        output.writeUInt32(4, pid_);
+      }
+      if (((bitField0_ & 0x00000010) == 0x00000010)) {
+        output.writeBytes(5, payload_);
+      }
+      if (((bitField0_ & 0x00000020) == 0x00000020)) {
+        output.writeBool(6, multipleResponses_);
+      }
+      if (((bitField0_ & 0x00000040) == 0x00000040)) {
+        output.writeDouble(7, frequency_);
+      }
+      if (((bitField0_ & 0x00000080) == 0x00000080)) {
+        output.writeBytes(8, getNameBytes());
+      }
+      if (((bitField0_ & 0x00000100) == 0x00000100)) {
+        output.writeEnum(9, decodedType_.getNumber());
+      }
+      getUnknownFields().writeTo(output);
+    }
+
+    private int memoizedSerializedSize = -1;
+    public int getSerializedSize() {
+      int size = memoizedSerializedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (((bitField0_ & 0x00000001) == 0x00000001)) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeInt32Size(1, bus_);
+      }
+      if (((bitField0_ & 0x00000002) == 0x00000002)) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeUInt32Size(2, messageId_);
+      }
+      if (((bitField0_ & 0x00000004) == 0x00000004)) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeUInt32Size(3, mode_);
+      }
+      if (((bitField0_ & 0x00000008) == 0x00000008)) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeUInt32Size(4, pid_);
+      }
+      if (((bitField0_ & 0x00000010) == 0x00000010)) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeBytesSize(5, payload_);
+      }
+      if (((bitField0_ & 0x00000020) == 0x00000020)) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeBoolSize(6, multipleResponses_);
+      }
+      if (((bitField0_ & 0x00000040) == 0x00000040)) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeDoubleSize(7, frequency_);
+      }
+      if (((bitField0_ & 0x00000080) == 0x00000080)) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeBytesSize(8, getNameBytes());
+      }
+      if (((bitField0_ & 0x00000100) == 0x00000100)) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeEnumSize(9, decodedType_.getNumber());
+      }
+      size += getUnknownFields().getSerializedSize();
+      memoizedSerializedSize = size;
+      return size;
+    }
+
+    private static final long serialVersionUID = 0L;
+    @java.lang.Override
+    protected java.lang.Object writeReplace()
+        throws java.io.ObjectStreamException {
+      return super.writeReplace();
+    }
+
+    public static com.openxc.BinaryMessages.DiagnosticRequest parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static com.openxc.BinaryMessages.DiagnosticRequest parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static com.openxc.BinaryMessages.DiagnosticRequest parseFrom(byte[] data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static com.openxc.BinaryMessages.DiagnosticRequest parseFrom(
+        byte[] data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static com.openxc.BinaryMessages.DiagnosticRequest parseFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return PARSER.parseFrom(input);
+    }
+    public static com.openxc.BinaryMessages.DiagnosticRequest parseFrom(
+        java.io.InputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return PARSER.parseFrom(input, extensionRegistry);
+    }
+    public static com.openxc.BinaryMessages.DiagnosticRequest parseDelimitedFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return PARSER.parseDelimitedFrom(input);
+    }
+    public static com.openxc.BinaryMessages.DiagnosticRequest parseDelimitedFrom(
+        java.io.InputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return PARSER.parseDelimitedFrom(input, extensionRegistry);
+    }
+    public static com.openxc.BinaryMessages.DiagnosticRequest parseFrom(
+        com.google.protobuf.CodedInputStream input)
+        throws java.io.IOException {
+      return PARSER.parseFrom(input);
+    }
+    public static com.openxc.BinaryMessages.DiagnosticRequest parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return PARSER.parseFrom(input, extensionRegistry);
+    }
+
+    public static Builder newBuilder() { return Builder.create(); }
+    public Builder newBuilderForType() { return newBuilder(); }
+    public static Builder newBuilder(com.openxc.BinaryMessages.DiagnosticRequest prototype) {
+      return newBuilder().mergeFrom(prototype);
+    }
+    public Builder toBuilder() { return newBuilder(this); }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessage.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     * Protobuf type {@code openxc.DiagnosticRequest}
+     */
+    public static final class Builder extends
+        com.google.protobuf.GeneratedMessage.Builder<Builder>
+       implements com.openxc.BinaryMessages.DiagnosticRequestOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor
+          getDescriptor() {
+        return com.openxc.BinaryMessages.internal_static_openxc_DiagnosticRequest_descriptor;
+      }
+
+      protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.openxc.BinaryMessages.internal_static_openxc_DiagnosticRequest_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.openxc.BinaryMessages.DiagnosticRequest.class, com.openxc.BinaryMessages.DiagnosticRequest.Builder.class);
+      }
+
+      // Construct using com.openxc.BinaryMessages.DiagnosticRequest.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(
+          com.google.protobuf.GeneratedMessage.BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessage.alwaysUseFieldBuilders) {
+        }
+      }
+      private static Builder create() {
+        return new Builder();
+      }
+
+      public Builder clear() {
+        super.clear();
+        bus_ = 0;
+        bitField0_ = (bitField0_ & ~0x00000001);
+        messageId_ = 0;
+        bitField0_ = (bitField0_ & ~0x00000002);
+        mode_ = 0;
+        bitField0_ = (bitField0_ & ~0x00000004);
+        pid_ = 0;
+        bitField0_ = (bitField0_ & ~0x00000008);
+        payload_ = com.google.protobuf.ByteString.EMPTY;
+        bitField0_ = (bitField0_ & ~0x00000010);
+        multipleResponses_ = false;
+        bitField0_ = (bitField0_ & ~0x00000020);
+        frequency_ = 0D;
+        bitField0_ = (bitField0_ & ~0x00000040);
+        name_ = "";
+        bitField0_ = (bitField0_ & ~0x00000080);
+        decodedType_ = com.openxc.BinaryMessages.DiagnosticRequest.DecodedType.NONE;
+        bitField0_ = (bitField0_ & ~0x00000100);
+        return this;
+      }
+
+      public Builder clone() {
+        return create().mergeFrom(buildPartial());
+      }
+
+      public com.google.protobuf.Descriptors.Descriptor
+          getDescriptorForType() {
+        return com.openxc.BinaryMessages.internal_static_openxc_DiagnosticRequest_descriptor;
+      }
+
+      public com.openxc.BinaryMessages.DiagnosticRequest getDefaultInstanceForType() {
+        return com.openxc.BinaryMessages.DiagnosticRequest.getDefaultInstance();
+      }
+
+      public com.openxc.BinaryMessages.DiagnosticRequest build() {
+        com.openxc.BinaryMessages.DiagnosticRequest result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      public com.openxc.BinaryMessages.DiagnosticRequest buildPartial() {
+        com.openxc.BinaryMessages.DiagnosticRequest result = new com.openxc.BinaryMessages.DiagnosticRequest(this);
+        int from_bitField0_ = bitField0_;
+        int to_bitField0_ = 0;
+        if (((from_bitField0_ & 0x00000001) == 0x00000001)) {
+          to_bitField0_ |= 0x00000001;
+        }
+        result.bus_ = bus_;
+        if (((from_bitField0_ & 0x00000002) == 0x00000002)) {
+          to_bitField0_ |= 0x00000002;
+        }
+        result.messageId_ = messageId_;
+        if (((from_bitField0_ & 0x00000004) == 0x00000004)) {
+          to_bitField0_ |= 0x00000004;
+        }
+        result.mode_ = mode_;
+        if (((from_bitField0_ & 0x00000008) == 0x00000008)) {
+          to_bitField0_ |= 0x00000008;
+        }
+        result.pid_ = pid_;
+        if (((from_bitField0_ & 0x00000010) == 0x00000010)) {
+          to_bitField0_ |= 0x00000010;
+        }
+        result.payload_ = payload_;
+        if (((from_bitField0_ & 0x00000020) == 0x00000020)) {
+          to_bitField0_ |= 0x00000020;
+        }
+        result.multipleResponses_ = multipleResponses_;
+        if (((from_bitField0_ & 0x00000040) == 0x00000040)) {
+          to_bitField0_ |= 0x00000040;
+        }
+        result.frequency_ = frequency_;
+        if (((from_bitField0_ & 0x00000080) == 0x00000080)) {
+          to_bitField0_ |= 0x00000080;
+        }
+        result.name_ = name_;
+        if (((from_bitField0_ & 0x00000100) == 0x00000100)) {
+          to_bitField0_ |= 0x00000100;
+        }
+        result.decodedType_ = decodedType_;
+        result.bitField0_ = to_bitField0_;
+        onBuilt();
+        return result;
+      }
+
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof com.openxc.BinaryMessages.DiagnosticRequest) {
+          return mergeFrom((com.openxc.BinaryMessages.DiagnosticRequest)other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(com.openxc.BinaryMessages.DiagnosticRequest other) {
+        if (other == com.openxc.BinaryMessages.DiagnosticRequest.getDefaultInstance()) return this;
+        if (other.hasBus()) {
+          setBus(other.getBus());
+        }
+        if (other.hasMessageId()) {
+          setMessageId(other.getMessageId());
+        }
+        if (other.hasMode()) {
+          setMode(other.getMode());
+        }
+        if (other.hasPid()) {
+          setPid(other.getPid());
+        }
+        if (other.hasPayload()) {
+          setPayload(other.getPayload());
+        }
+        if (other.hasMultipleResponses()) {
+          setMultipleResponses(other.getMultipleResponses());
+        }
+        if (other.hasFrequency()) {
+          setFrequency(other.getFrequency());
+        }
+        if (other.hasName()) {
+          bitField0_ |= 0x00000080;
+          name_ = other.name_;
+          onChanged();
+        }
+        if (other.hasDecodedType()) {
+          setDecodedType(other.getDecodedType());
+        }
+        this.mergeUnknownFields(other.getUnknownFields());
+        return this;
+      }
+
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        com.openxc.BinaryMessages.DiagnosticRequest parsedMessage = null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage = (com.openxc.BinaryMessages.DiagnosticRequest) e.getUnfinishedMessage();
+          throw e;
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+      private int bitField0_;
+
+      // optional int32 bus = 1;
+      private int bus_ ;
+      /**
+       * <code>optional int32 bus = 1;</code>
+       */
+      public boolean hasBus() {
+        return ((bitField0_ & 0x00000001) == 0x00000001);
+      }
+      /**
+       * <code>optional int32 bus = 1;</code>
+       */
+      public int getBus() {
+        return bus_;
+      }
+      /**
+       * <code>optional int32 bus = 1;</code>
+       */
+      public Builder setBus(int value) {
+        bitField0_ |= 0x00000001;
+        bus_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>optional int32 bus = 1;</code>
+       */
+      public Builder clearBus() {
+        bitField0_ = (bitField0_ & ~0x00000001);
+        bus_ = 0;
+        onChanged();
+        return this;
+      }
+
+      // optional uint32 message_id = 2;
+      private int messageId_ ;
+      /**
+       * <code>optional uint32 message_id = 2;</code>
+       */
+      public boolean hasMessageId() {
+        return ((bitField0_ & 0x00000002) == 0x00000002);
+      }
+      /**
+       * <code>optional uint32 message_id = 2;</code>
+       */
+      public int getMessageId() {
+        return messageId_;
+      }
+      /**
+       * <code>optional uint32 message_id = 2;</code>
+       */
+      public Builder setMessageId(int value) {
+        bitField0_ |= 0x00000002;
+        messageId_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>optional uint32 message_id = 2;</code>
+       */
+      public Builder clearMessageId() {
+        bitField0_ = (bitField0_ & ~0x00000002);
+        messageId_ = 0;
+        onChanged();
+        return this;
+      }
+
+      // optional uint32 mode = 3;
+      private int mode_ ;
+      /**
+       * <code>optional uint32 mode = 3;</code>
+       */
+      public boolean hasMode() {
+        return ((bitField0_ & 0x00000004) == 0x00000004);
+      }
+      /**
+       * <code>optional uint32 mode = 3;</code>
+       */
+      public int getMode() {
+        return mode_;
+      }
+      /**
+       * <code>optional uint32 mode = 3;</code>
+       */
+      public Builder setMode(int value) {
+        bitField0_ |= 0x00000004;
+        mode_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>optional uint32 mode = 3;</code>
+       */
+      public Builder clearMode() {
+        bitField0_ = (bitField0_ & ~0x00000004);
+        mode_ = 0;
+        onChanged();
+        return this;
+      }
+
+      // optional uint32 pid = 4;
+      private int pid_ ;
+      /**
+       * <code>optional uint32 pid = 4;</code>
+       */
+      public boolean hasPid() {
+        return ((bitField0_ & 0x00000008) == 0x00000008);
+      }
+      /**
+       * <code>optional uint32 pid = 4;</code>
+       */
+      public int getPid() {
+        return pid_;
+      }
+      /**
+       * <code>optional uint32 pid = 4;</code>
+       */
+      public Builder setPid(int value) {
+        bitField0_ |= 0x00000008;
+        pid_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>optional uint32 pid = 4;</code>
+       */
+      public Builder clearPid() {
+        bitField0_ = (bitField0_ & ~0x00000008);
+        pid_ = 0;
+        onChanged();
+        return this;
+      }
+
+      // optional bytes payload = 5;
+      private com.google.protobuf.ByteString payload_ = com.google.protobuf.ByteString.EMPTY;
+      /**
+       * <code>optional bytes payload = 5;</code>
+       *
+       * <pre>
+       * TODO we are capping this at 8 bytes for now - need to change when we
+       * support multi-frame responses
+       * </pre>
+       */
+      public boolean hasPayload() {
+        return ((bitField0_ & 0x00000010) == 0x00000010);
+      }
+      /**
+       * <code>optional bytes payload = 5;</code>
+       *
+       * <pre>
+       * TODO we are capping this at 8 bytes for now - need to change when we
+       * support multi-frame responses
+       * </pre>
+       */
+      public com.google.protobuf.ByteString getPayload() {
+        return payload_;
+      }
+      /**
+       * <code>optional bytes payload = 5;</code>
+       *
+       * <pre>
+       * TODO we are capping this at 8 bytes for now - need to change when we
+       * support multi-frame responses
+       * </pre>
+       */
+      public Builder setPayload(com.google.protobuf.ByteString value) {
+        if (value == null) {
+    throw new NullPointerException();
+  }
+  bitField0_ |= 0x00000010;
+        payload_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>optional bytes payload = 5;</code>
+       *
+       * <pre>
+       * TODO we are capping this at 8 bytes for now - need to change when we
+       * support multi-frame responses
+       * </pre>
+       */
+      public Builder clearPayload() {
+        bitField0_ = (bitField0_ & ~0x00000010);
+        payload_ = getDefaultInstance().getPayload();
+        onChanged();
+        return this;
+      }
+
+      // optional bool multiple_responses = 6;
+      private boolean multipleResponses_ ;
+      /**
+       * <code>optional bool multiple_responses = 6;</code>
+       */
+      public boolean hasMultipleResponses() {
+        return ((bitField0_ & 0x00000020) == 0x00000020);
+      }
+      /**
+       * <code>optional bool multiple_responses = 6;</code>
+       */
+      public boolean getMultipleResponses() {
+        return multipleResponses_;
+      }
+      /**
+       * <code>optional bool multiple_responses = 6;</code>
+       */
+      public Builder setMultipleResponses(boolean value) {
+        bitField0_ |= 0x00000020;
+        multipleResponses_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>optional bool multiple_responses = 6;</code>
+       */
+      public Builder clearMultipleResponses() {
+        bitField0_ = (bitField0_ & ~0x00000020);
+        multipleResponses_ = false;
+        onChanged();
+        return this;
+      }
+
+      // optional double frequency = 7;
+      private double frequency_ ;
+      /**
+       * <code>optional double frequency = 7;</code>
+       */
+      public boolean hasFrequency() {
+        return ((bitField0_ & 0x00000040) == 0x00000040);
+      }
+      /**
+       * <code>optional double frequency = 7;</code>
+       */
+      public double getFrequency() {
+        return frequency_;
+      }
+      /**
+       * <code>optional double frequency = 7;</code>
+       */
+      public Builder setFrequency(double value) {
+        bitField0_ |= 0x00000040;
+        frequency_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>optional double frequency = 7;</code>
+       */
+      public Builder clearFrequency() {
+        bitField0_ = (bitField0_ & ~0x00000040);
+        frequency_ = 0D;
+        onChanged();
+        return this;
+      }
+
+      // optional string name = 8;
+      private java.lang.Object name_ = "";
+      /**
+       * <code>optional string name = 8;</code>
+       */
+      public boolean hasName() {
+        return ((bitField0_ & 0x00000080) == 0x00000080);
+      }
+      /**
+       * <code>optional string name = 8;</code>
+       */
+      public java.lang.String getName() {
+        java.lang.Object ref = name_;
+        if (!(ref instanceof java.lang.String)) {
+          java.lang.String s = ((com.google.protobuf.ByteString) ref)
+              .toStringUtf8();
+          name_ = s;
+          return s;
+        } else {
+          return (java.lang.String) ref;
+        }
+      }
+      /**
+       * <code>optional string name = 8;</code>
+       */
+      public com.google.protobuf.ByteString
+          getNameBytes() {
+        java.lang.Object ref = name_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b = 
+              com.google.protobuf.ByteString.copyFromUtf8(
+                  (java.lang.String) ref);
+          name_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+      /**
+       * <code>optional string name = 8;</code>
+       */
+      public Builder setName(
+          java.lang.String value) {
+        if (value == null) {
+    throw new NullPointerException();
+  }
+  bitField0_ |= 0x00000080;
+        name_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>optional string name = 8;</code>
+       */
+      public Builder clearName() {
+        bitField0_ = (bitField0_ & ~0x00000080);
+        name_ = getDefaultInstance().getName();
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>optional string name = 8;</code>
+       */
+      public Builder setNameBytes(
+          com.google.protobuf.ByteString value) {
+        if (value == null) {
+    throw new NullPointerException();
+  }
+  bitField0_ |= 0x00000080;
+        name_ = value;
+        onChanged();
+        return this;
+      }
+
+      // optional .openxc.DiagnosticRequest.DecodedType decoded_type = 9;
+      private com.openxc.BinaryMessages.DiagnosticRequest.DecodedType decodedType_ = com.openxc.BinaryMessages.DiagnosticRequest.DecodedType.NONE;
+      /**
+       * <code>optional .openxc.DiagnosticRequest.DecodedType decoded_type = 9;</code>
+       */
+      public boolean hasDecodedType() {
+        return ((bitField0_ & 0x00000100) == 0x00000100);
+      }
+      /**
+       * <code>optional .openxc.DiagnosticRequest.DecodedType decoded_type = 9;</code>
+       */
+      public com.openxc.BinaryMessages.DiagnosticRequest.DecodedType getDecodedType() {
+        return decodedType_;
+      }
+      /**
+       * <code>optional .openxc.DiagnosticRequest.DecodedType decoded_type = 9;</code>
+       */
+      public Builder setDecodedType(com.openxc.BinaryMessages.DiagnosticRequest.DecodedType value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        bitField0_ |= 0x00000100;
+        decodedType_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>optional .openxc.DiagnosticRequest.DecodedType decoded_type = 9;</code>
+       */
+      public Builder clearDecodedType() {
+        bitField0_ = (bitField0_ & ~0x00000100);
+        decodedType_ = com.openxc.BinaryMessages.DiagnosticRequest.DecodedType.NONE;
+        onChanged();
+        return this;
+      }
+
+      // @@protoc_insertion_point(builder_scope:openxc.DiagnosticRequest)
+    }
+
+    static {
+      defaultInstance = new DiagnosticRequest(true);
+      defaultInstance.initFields();
+    }
+
+    // @@protoc_insertion_point(class_scope:openxc.DiagnosticRequest)
+  }
+
+  public interface DiagnosticResponseOrBuilder
+      extends com.google.protobuf.MessageOrBuilder {
+
+    // optional int32 bus = 1;
+    /**
+     * <code>optional int32 bus = 1;</code>
+     */
+    boolean hasBus();
+    /**
+     * <code>optional int32 bus = 1;</code>
+     */
+    int getBus();
+
+    // optional uint32 message_id = 2;
+    /**
+     * <code>optional uint32 message_id = 2;</code>
+     */
+    boolean hasMessageId();
+    /**
+     * <code>optional uint32 message_id = 2;</code>
+     */
+    int getMessageId();
+
+    // optional uint32 mode = 3;
+    /**
+     * <code>optional uint32 mode = 3;</code>
+     */
+    boolean hasMode();
+    /**
+     * <code>optional uint32 mode = 3;</code>
+     */
+    int getMode();
+
+    // optional uint32 pid = 4;
+    /**
+     * <code>optional uint32 pid = 4;</code>
+     */
+    boolean hasPid();
+    /**
+     * <code>optional uint32 pid = 4;</code>
+     */
+    int getPid();
+
+    // optional bool success = 5;
+    /**
+     * <code>optional bool success = 5;</code>
+     */
+    boolean hasSuccess();
+    /**
+     * <code>optional bool success = 5;</code>
+     */
+    boolean getSuccess();
+
+    // optional uint32 negative_response_code = 6;
+    /**
+     * <code>optional uint32 negative_response_code = 6;</code>
+     */
+    boolean hasNegativeResponseCode();
+    /**
+     * <code>optional uint32 negative_response_code = 6;</code>
+     */
+    int getNegativeResponseCode();
+
+    // optional bytes payload = 7;
+    /**
+     * <code>optional bytes payload = 7;</code>
+     *
+     * <pre>
+     * TODO we are capping this at 8 bytes for now - need to change when we
+     * support multi-frame responses
+     * </pre>
+     */
+    boolean hasPayload();
+    /**
+     * <code>optional bytes payload = 7;</code>
+     *
+     * <pre>
+     * TODO we are capping this at 8 bytes for now - need to change when we
+     * support multi-frame responses
+     * </pre>
+     */
+    com.google.protobuf.ByteString getPayload();
+
+    // optional double value = 8;
+    /**
+     * <code>optional double value = 8;</code>
+     */
+    boolean hasValue();
+    /**
+     * <code>optional double value = 8;</code>
+     */
+    double getValue();
+  }
+  /**
+   * Protobuf type {@code openxc.DiagnosticResponse}
+   */
+  public static final class DiagnosticResponse extends
+      com.google.protobuf.GeneratedMessage
+      implements DiagnosticResponseOrBuilder {
+    // Use DiagnosticResponse.newBuilder() to construct.
+    private DiagnosticResponse(com.google.protobuf.GeneratedMessage.Builder<?> builder) {
+      super(builder);
+      this.unknownFields = builder.getUnknownFields();
+    }
+    private DiagnosticResponse(boolean noInit) { this.unknownFields = com.google.protobuf.UnknownFieldSet.getDefaultInstance(); }
+
+    private static final DiagnosticResponse defaultInstance;
+    public static DiagnosticResponse getDefaultInstance() {
+      return defaultInstance;
+    }
+
+    public DiagnosticResponse getDefaultInstanceForType() {
+      return defaultInstance;
+    }
+
+    private final com.google.protobuf.UnknownFieldSet unknownFields;
+    @java.lang.Override
+    public final com.google.protobuf.UnknownFieldSet
+        getUnknownFields() {
+      return this.unknownFields;
+    }
+    private DiagnosticResponse(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      initFields();
+      int mutable_bitField0_ = 0;
+      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder();
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            default: {
+              if (!parseUnknownField(input, unknownFields,
+                                     extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+            case 8: {
+              bitField0_ |= 0x00000001;
+              bus_ = input.readInt32();
+              break;
+            }
+            case 16: {
+              bitField0_ |= 0x00000002;
+              messageId_ = input.readUInt32();
+              break;
+            }
+            case 24: {
+              bitField0_ |= 0x00000004;
+              mode_ = input.readUInt32();
+              break;
+            }
+            case 32: {
+              bitField0_ |= 0x00000008;
+              pid_ = input.readUInt32();
+              break;
+            }
+            case 40: {
+              bitField0_ |= 0x00000010;
+              success_ = input.readBool();
+              break;
+            }
+            case 48: {
+              bitField0_ |= 0x00000020;
+              negativeResponseCode_ = input.readUInt32();
+              break;
+            }
+            case 58: {
+              bitField0_ |= 0x00000040;
+              payload_ = input.readBytes();
+              break;
+            }
+            case 65: {
+              bitField0_ |= 0x00000080;
+              value_ = input.readDouble();
+              break;
+            }
+          }
+        }
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new com.google.protobuf.InvalidProtocolBufferException(
+            e.getMessage()).setUnfinishedMessage(this);
+      } finally {
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.openxc.BinaryMessages.internal_static_openxc_DiagnosticResponse_descriptor;
+    }
+
+    protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.openxc.BinaryMessages.internal_static_openxc_DiagnosticResponse_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.openxc.BinaryMessages.DiagnosticResponse.class, com.openxc.BinaryMessages.DiagnosticResponse.Builder.class);
+    }
+
+    public static com.google.protobuf.Parser<DiagnosticResponse> PARSER =
+        new com.google.protobuf.AbstractParser<DiagnosticResponse>() {
+      public DiagnosticResponse parsePartialFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return new DiagnosticResponse(input, extensionRegistry);
+      }
+    };
+
+    @java.lang.Override
+    public com.google.protobuf.Parser<DiagnosticResponse> getParserForType() {
+      return PARSER;
+    }
+
+    private int bitField0_;
+    // optional int32 bus = 1;
+    public static final int BUS_FIELD_NUMBER = 1;
+    private int bus_;
+    /**
+     * <code>optional int32 bus = 1;</code>
+     */
+    public boolean hasBus() {
+      return ((bitField0_ & 0x00000001) == 0x00000001);
+    }
+    /**
+     * <code>optional int32 bus = 1;</code>
+     */
+    public int getBus() {
+      return bus_;
+    }
+
+    // optional uint32 message_id = 2;
+    public static final int MESSAGE_ID_FIELD_NUMBER = 2;
+    private int messageId_;
+    /**
+     * <code>optional uint32 message_id = 2;</code>
+     */
+    public boolean hasMessageId() {
+      return ((bitField0_ & 0x00000002) == 0x00000002);
+    }
+    /**
+     * <code>optional uint32 message_id = 2;</code>
+     */
+    public int getMessageId() {
+      return messageId_;
+    }
+
+    // optional uint32 mode = 3;
+    public static final int MODE_FIELD_NUMBER = 3;
+    private int mode_;
+    /**
+     * <code>optional uint32 mode = 3;</code>
+     */
+    public boolean hasMode() {
+      return ((bitField0_ & 0x00000004) == 0x00000004);
+    }
+    /**
+     * <code>optional uint32 mode = 3;</code>
+     */
+    public int getMode() {
+      return mode_;
+    }
+
+    // optional uint32 pid = 4;
+    public static final int PID_FIELD_NUMBER = 4;
+    private int pid_;
+    /**
+     * <code>optional uint32 pid = 4;</code>
+     */
+    public boolean hasPid() {
+      return ((bitField0_ & 0x00000008) == 0x00000008);
+    }
+    /**
+     * <code>optional uint32 pid = 4;</code>
+     */
+    public int getPid() {
+      return pid_;
+    }
+
+    // optional bool success = 5;
+    public static final int SUCCESS_FIELD_NUMBER = 5;
+    private boolean success_;
+    /**
+     * <code>optional bool success = 5;</code>
+     */
+    public boolean hasSuccess() {
+      return ((bitField0_ & 0x00000010) == 0x00000010);
+    }
+    /**
+     * <code>optional bool success = 5;</code>
+     */
+    public boolean getSuccess() {
+      return success_;
+    }
+
+    // optional uint32 negative_response_code = 6;
+    public static final int NEGATIVE_RESPONSE_CODE_FIELD_NUMBER = 6;
+    private int negativeResponseCode_;
+    /**
+     * <code>optional uint32 negative_response_code = 6;</code>
+     */
+    public boolean hasNegativeResponseCode() {
+      return ((bitField0_ & 0x00000020) == 0x00000020);
+    }
+    /**
+     * <code>optional uint32 negative_response_code = 6;</code>
+     */
+    public int getNegativeResponseCode() {
+      return negativeResponseCode_;
+    }
+
+    // optional bytes payload = 7;
+    public static final int PAYLOAD_FIELD_NUMBER = 7;
+    private com.google.protobuf.ByteString payload_;
+    /**
+     * <code>optional bytes payload = 7;</code>
+     *
+     * <pre>
+     * TODO we are capping this at 8 bytes for now - need to change when we
+     * support multi-frame responses
+     * </pre>
+     */
+    public boolean hasPayload() {
+      return ((bitField0_ & 0x00000040) == 0x00000040);
+    }
+    /**
+     * <code>optional bytes payload = 7;</code>
+     *
+     * <pre>
+     * TODO we are capping this at 8 bytes for now - need to change when we
+     * support multi-frame responses
+     * </pre>
+     */
+    public com.google.protobuf.ByteString getPayload() {
+      return payload_;
+    }
+
+    // optional double value = 8;
+    public static final int VALUE_FIELD_NUMBER = 8;
+    private double value_;
+    /**
+     * <code>optional double value = 8;</code>
+     */
+    public boolean hasValue() {
+      return ((bitField0_ & 0x00000080) == 0x00000080);
+    }
+    /**
+     * <code>optional double value = 8;</code>
+     */
+    public double getValue() {
+      return value_;
+    }
+
+    private void initFields() {
+      bus_ = 0;
+      messageId_ = 0;
+      mode_ = 0;
+      pid_ = 0;
+      success_ = false;
+      negativeResponseCode_ = 0;
+      payload_ = com.google.protobuf.ByteString.EMPTY;
+      value_ = 0D;
+    }
+    private byte memoizedIsInitialized = -1;
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized != -1) return isInitialized == 1;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    public void writeTo(com.google.protobuf.CodedOutputStream output)
+                        throws java.io.IOException {
+      getSerializedSize();
+      if (((bitField0_ & 0x00000001) == 0x00000001)) {
+        output.writeInt32(1, bus_);
+      }
+      if (((bitField0_ & 0x00000002) == 0x00000002)) {
+        output.writeUInt32(2, messageId_);
+      }
+      if (((bitField0_ & 0x00000004) == 0x00000004)) {
+        output.writeUInt32(3, mode_);
+      }
+      if (((bitField0_ & 0x00000008) == 0x00000008)) {
+        output.writeUInt32(4, pid_);
+      }
+      if (((bitField0_ & 0x00000010) == 0x00000010)) {
+        output.writeBool(5, success_);
+      }
+      if (((bitField0_ & 0x00000020) == 0x00000020)) {
+        output.writeUInt32(6, negativeResponseCode_);
+      }
+      if (((bitField0_ & 0x00000040) == 0x00000040)) {
+        output.writeBytes(7, payload_);
+      }
+      if (((bitField0_ & 0x00000080) == 0x00000080)) {
+        output.writeDouble(8, value_);
+      }
+      getUnknownFields().writeTo(output);
+    }
+
+    private int memoizedSerializedSize = -1;
+    public int getSerializedSize() {
+      int size = memoizedSerializedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (((bitField0_ & 0x00000001) == 0x00000001)) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeInt32Size(1, bus_);
+      }
+      if (((bitField0_ & 0x00000002) == 0x00000002)) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeUInt32Size(2, messageId_);
+      }
+      if (((bitField0_ & 0x00000004) == 0x00000004)) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeUInt32Size(3, mode_);
+      }
+      if (((bitField0_ & 0x00000008) == 0x00000008)) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeUInt32Size(4, pid_);
+      }
+      if (((bitField0_ & 0x00000010) == 0x00000010)) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeBoolSize(5, success_);
+      }
+      if (((bitField0_ & 0x00000020) == 0x00000020)) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeUInt32Size(6, negativeResponseCode_);
+      }
+      if (((bitField0_ & 0x00000040) == 0x00000040)) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeBytesSize(7, payload_);
+      }
+      if (((bitField0_ & 0x00000080) == 0x00000080)) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeDoubleSize(8, value_);
+      }
+      size += getUnknownFields().getSerializedSize();
+      memoizedSerializedSize = size;
+      return size;
+    }
+
+    private static final long serialVersionUID = 0L;
+    @java.lang.Override
+    protected java.lang.Object writeReplace()
+        throws java.io.ObjectStreamException {
+      return super.writeReplace();
+    }
+
+    public static com.openxc.BinaryMessages.DiagnosticResponse parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static com.openxc.BinaryMessages.DiagnosticResponse parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static com.openxc.BinaryMessages.DiagnosticResponse parseFrom(byte[] data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static com.openxc.BinaryMessages.DiagnosticResponse parseFrom(
+        byte[] data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static com.openxc.BinaryMessages.DiagnosticResponse parseFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return PARSER.parseFrom(input);
+    }
+    public static com.openxc.BinaryMessages.DiagnosticResponse parseFrom(
+        java.io.InputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return PARSER.parseFrom(input, extensionRegistry);
+    }
+    public static com.openxc.BinaryMessages.DiagnosticResponse parseDelimitedFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return PARSER.parseDelimitedFrom(input);
+    }
+    public static com.openxc.BinaryMessages.DiagnosticResponse parseDelimitedFrom(
+        java.io.InputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return PARSER.parseDelimitedFrom(input, extensionRegistry);
+    }
+    public static com.openxc.BinaryMessages.DiagnosticResponse parseFrom(
+        com.google.protobuf.CodedInputStream input)
+        throws java.io.IOException {
+      return PARSER.parseFrom(input);
+    }
+    public static com.openxc.BinaryMessages.DiagnosticResponse parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return PARSER.parseFrom(input, extensionRegistry);
+    }
+
+    public static Builder newBuilder() { return Builder.create(); }
+    public Builder newBuilderForType() { return newBuilder(); }
+    public static Builder newBuilder(com.openxc.BinaryMessages.DiagnosticResponse prototype) {
+      return newBuilder().mergeFrom(prototype);
+    }
+    public Builder toBuilder() { return newBuilder(this); }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessage.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     * Protobuf type {@code openxc.DiagnosticResponse}
+     */
+    public static final class Builder extends
+        com.google.protobuf.GeneratedMessage.Builder<Builder>
+       implements com.openxc.BinaryMessages.DiagnosticResponseOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor
+          getDescriptor() {
+        return com.openxc.BinaryMessages.internal_static_openxc_DiagnosticResponse_descriptor;
+      }
+
+      protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.openxc.BinaryMessages.internal_static_openxc_DiagnosticResponse_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.openxc.BinaryMessages.DiagnosticResponse.class, com.openxc.BinaryMessages.DiagnosticResponse.Builder.class);
+      }
+
+      // Construct using com.openxc.BinaryMessages.DiagnosticResponse.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(
+          com.google.protobuf.GeneratedMessage.BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessage.alwaysUseFieldBuilders) {
+        }
+      }
+      private static Builder create() {
+        return new Builder();
+      }
+
+      public Builder clear() {
+        super.clear();
+        bus_ = 0;
+        bitField0_ = (bitField0_ & ~0x00000001);
+        messageId_ = 0;
+        bitField0_ = (bitField0_ & ~0x00000002);
+        mode_ = 0;
+        bitField0_ = (bitField0_ & ~0x00000004);
+        pid_ = 0;
+        bitField0_ = (bitField0_ & ~0x00000008);
+        success_ = false;
+        bitField0_ = (bitField0_ & ~0x00000010);
+        negativeResponseCode_ = 0;
+        bitField0_ = (bitField0_ & ~0x00000020);
+        payload_ = com.google.protobuf.ByteString.EMPTY;
+        bitField0_ = (bitField0_ & ~0x00000040);
+        value_ = 0D;
+        bitField0_ = (bitField0_ & ~0x00000080);
+        return this;
+      }
+
+      public Builder clone() {
+        return create().mergeFrom(buildPartial());
+      }
+
+      public com.google.protobuf.Descriptors.Descriptor
+          getDescriptorForType() {
+        return com.openxc.BinaryMessages.internal_static_openxc_DiagnosticResponse_descriptor;
+      }
+
+      public com.openxc.BinaryMessages.DiagnosticResponse getDefaultInstanceForType() {
+        return com.openxc.BinaryMessages.DiagnosticResponse.getDefaultInstance();
+      }
+
+      public com.openxc.BinaryMessages.DiagnosticResponse build() {
+        com.openxc.BinaryMessages.DiagnosticResponse result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      public com.openxc.BinaryMessages.DiagnosticResponse buildPartial() {
+        com.openxc.BinaryMessages.DiagnosticResponse result = new com.openxc.BinaryMessages.DiagnosticResponse(this);
+        int from_bitField0_ = bitField0_;
+        int to_bitField0_ = 0;
+        if (((from_bitField0_ & 0x00000001) == 0x00000001)) {
+          to_bitField0_ |= 0x00000001;
+        }
+        result.bus_ = bus_;
+        if (((from_bitField0_ & 0x00000002) == 0x00000002)) {
+          to_bitField0_ |= 0x00000002;
+        }
+        result.messageId_ = messageId_;
+        if (((from_bitField0_ & 0x00000004) == 0x00000004)) {
+          to_bitField0_ |= 0x00000004;
+        }
+        result.mode_ = mode_;
+        if (((from_bitField0_ & 0x00000008) == 0x00000008)) {
+          to_bitField0_ |= 0x00000008;
+        }
+        result.pid_ = pid_;
+        if (((from_bitField0_ & 0x00000010) == 0x00000010)) {
+          to_bitField0_ |= 0x00000010;
+        }
+        result.success_ = success_;
+        if (((from_bitField0_ & 0x00000020) == 0x00000020)) {
+          to_bitField0_ |= 0x00000020;
+        }
+        result.negativeResponseCode_ = negativeResponseCode_;
+        if (((from_bitField0_ & 0x00000040) == 0x00000040)) {
+          to_bitField0_ |= 0x00000040;
+        }
+        result.payload_ = payload_;
+        if (((from_bitField0_ & 0x00000080) == 0x00000080)) {
+          to_bitField0_ |= 0x00000080;
+        }
+        result.value_ = value_;
+        result.bitField0_ = to_bitField0_;
+        onBuilt();
+        return result;
+      }
+
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof com.openxc.BinaryMessages.DiagnosticResponse) {
+          return mergeFrom((com.openxc.BinaryMessages.DiagnosticResponse)other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(com.openxc.BinaryMessages.DiagnosticResponse other) {
+        if (other == com.openxc.BinaryMessages.DiagnosticResponse.getDefaultInstance()) return this;
+        if (other.hasBus()) {
+          setBus(other.getBus());
+        }
+        if (other.hasMessageId()) {
+          setMessageId(other.getMessageId());
+        }
+        if (other.hasMode()) {
+          setMode(other.getMode());
+        }
+        if (other.hasPid()) {
+          setPid(other.getPid());
+        }
+        if (other.hasSuccess()) {
+          setSuccess(other.getSuccess());
+        }
+        if (other.hasNegativeResponseCode()) {
+          setNegativeResponseCode(other.getNegativeResponseCode());
+        }
+        if (other.hasPayload()) {
+          setPayload(other.getPayload());
+        }
+        if (other.hasValue()) {
+          setValue(other.getValue());
+        }
+        this.mergeUnknownFields(other.getUnknownFields());
+        return this;
+      }
+
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        com.openxc.BinaryMessages.DiagnosticResponse parsedMessage = null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage = (com.openxc.BinaryMessages.DiagnosticResponse) e.getUnfinishedMessage();
+          throw e;
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+      private int bitField0_;
+
+      // optional int32 bus = 1;
+      private int bus_ ;
+      /**
+       * <code>optional int32 bus = 1;</code>
+       */
+      public boolean hasBus() {
+        return ((bitField0_ & 0x00000001) == 0x00000001);
+      }
+      /**
+       * <code>optional int32 bus = 1;</code>
+       */
+      public int getBus() {
+        return bus_;
+      }
+      /**
+       * <code>optional int32 bus = 1;</code>
+       */
+      public Builder setBus(int value) {
+        bitField0_ |= 0x00000001;
+        bus_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>optional int32 bus = 1;</code>
+       */
+      public Builder clearBus() {
+        bitField0_ = (bitField0_ & ~0x00000001);
+        bus_ = 0;
+        onChanged();
+        return this;
+      }
+
+      // optional uint32 message_id = 2;
+      private int messageId_ ;
+      /**
+       * <code>optional uint32 message_id = 2;</code>
+       */
+      public boolean hasMessageId() {
+        return ((bitField0_ & 0x00000002) == 0x00000002);
+      }
+      /**
+       * <code>optional uint32 message_id = 2;</code>
+       */
+      public int getMessageId() {
+        return messageId_;
+      }
+      /**
+       * <code>optional uint32 message_id = 2;</code>
+       */
+      public Builder setMessageId(int value) {
+        bitField0_ |= 0x00000002;
+        messageId_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>optional uint32 message_id = 2;</code>
+       */
+      public Builder clearMessageId() {
+        bitField0_ = (bitField0_ & ~0x00000002);
+        messageId_ = 0;
+        onChanged();
+        return this;
+      }
+
+      // optional uint32 mode = 3;
+      private int mode_ ;
+      /**
+       * <code>optional uint32 mode = 3;</code>
+       */
+      public boolean hasMode() {
+        return ((bitField0_ & 0x00000004) == 0x00000004);
+      }
+      /**
+       * <code>optional uint32 mode = 3;</code>
+       */
+      public int getMode() {
+        return mode_;
+      }
+      /**
+       * <code>optional uint32 mode = 3;</code>
+       */
+      public Builder setMode(int value) {
+        bitField0_ |= 0x00000004;
+        mode_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>optional uint32 mode = 3;</code>
+       */
+      public Builder clearMode() {
+        bitField0_ = (bitField0_ & ~0x00000004);
+        mode_ = 0;
+        onChanged();
+        return this;
+      }
+
+      // optional uint32 pid = 4;
+      private int pid_ ;
+      /**
+       * <code>optional uint32 pid = 4;</code>
+       */
+      public boolean hasPid() {
+        return ((bitField0_ & 0x00000008) == 0x00000008);
+      }
+      /**
+       * <code>optional uint32 pid = 4;</code>
+       */
+      public int getPid() {
+        return pid_;
+      }
+      /**
+       * <code>optional uint32 pid = 4;</code>
+       */
+      public Builder setPid(int value) {
+        bitField0_ |= 0x00000008;
+        pid_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>optional uint32 pid = 4;</code>
+       */
+      public Builder clearPid() {
+        bitField0_ = (bitField0_ & ~0x00000008);
+        pid_ = 0;
+        onChanged();
+        return this;
+      }
+
+      // optional bool success = 5;
+      private boolean success_ ;
+      /**
+       * <code>optional bool success = 5;</code>
+       */
+      public boolean hasSuccess() {
+        return ((bitField0_ & 0x00000010) == 0x00000010);
+      }
+      /**
+       * <code>optional bool success = 5;</code>
+       */
+      public boolean getSuccess() {
+        return success_;
+      }
+      /**
+       * <code>optional bool success = 5;</code>
+       */
+      public Builder setSuccess(boolean value) {
+        bitField0_ |= 0x00000010;
+        success_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>optional bool success = 5;</code>
+       */
+      public Builder clearSuccess() {
+        bitField0_ = (bitField0_ & ~0x00000010);
+        success_ = false;
+        onChanged();
+        return this;
+      }
+
+      // optional uint32 negative_response_code = 6;
+      private int negativeResponseCode_ ;
+      /**
+       * <code>optional uint32 negative_response_code = 6;</code>
+       */
+      public boolean hasNegativeResponseCode() {
+        return ((bitField0_ & 0x00000020) == 0x00000020);
+      }
+      /**
+       * <code>optional uint32 negative_response_code = 6;</code>
+       */
+      public int getNegativeResponseCode() {
+        return negativeResponseCode_;
+      }
+      /**
+       * <code>optional uint32 negative_response_code = 6;</code>
+       */
+      public Builder setNegativeResponseCode(int value) {
+        bitField0_ |= 0x00000020;
+        negativeResponseCode_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>optional uint32 negative_response_code = 6;</code>
+       */
+      public Builder clearNegativeResponseCode() {
+        bitField0_ = (bitField0_ & ~0x00000020);
+        negativeResponseCode_ = 0;
+        onChanged();
+        return this;
+      }
+
+      // optional bytes payload = 7;
+      private com.google.protobuf.ByteString payload_ = com.google.protobuf.ByteString.EMPTY;
+      /**
+       * <code>optional bytes payload = 7;</code>
+       *
+       * <pre>
+       * TODO we are capping this at 8 bytes for now - need to change when we
+       * support multi-frame responses
+       * </pre>
+       */
+      public boolean hasPayload() {
+        return ((bitField0_ & 0x00000040) == 0x00000040);
+      }
+      /**
+       * <code>optional bytes payload = 7;</code>
+       *
+       * <pre>
+       * TODO we are capping this at 8 bytes for now - need to change when we
+       * support multi-frame responses
+       * </pre>
+       */
+      public com.google.protobuf.ByteString getPayload() {
+        return payload_;
+      }
+      /**
+       * <code>optional bytes payload = 7;</code>
+       *
+       * <pre>
+       * TODO we are capping this at 8 bytes for now - need to change when we
+       * support multi-frame responses
+       * </pre>
+       */
+      public Builder setPayload(com.google.protobuf.ByteString value) {
+        if (value == null) {
+    throw new NullPointerException();
+  }
+  bitField0_ |= 0x00000040;
+        payload_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>optional bytes payload = 7;</code>
+       *
+       * <pre>
+       * TODO we are capping this at 8 bytes for now - need to change when we
+       * support multi-frame responses
+       * </pre>
+       */
+      public Builder clearPayload() {
+        bitField0_ = (bitField0_ & ~0x00000040);
+        payload_ = getDefaultInstance().getPayload();
+        onChanged();
+        return this;
+      }
+
+      // optional double value = 8;
+      private double value_ ;
+      /**
+       * <code>optional double value = 8;</code>
+       */
+      public boolean hasValue() {
+        return ((bitField0_ & 0x00000080) == 0x00000080);
+      }
+      /**
+       * <code>optional double value = 8;</code>
+       */
+      public double getValue() {
+        return value_;
+      }
+      /**
+       * <code>optional double value = 8;</code>
+       */
+      public Builder setValue(double value) {
+        bitField0_ |= 0x00000080;
+        value_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>optional double value = 8;</code>
+       */
+      public Builder clearValue() {
+        bitField0_ = (bitField0_ & ~0x00000080);
+        value_ = 0D;
+        onChanged();
+        return this;
+      }
+
+      // @@protoc_insertion_point(builder_scope:openxc.DiagnosticResponse)
+    }
+
+    static {
+      defaultInstance = new DiagnosticResponse(true);
+      defaultInstance.initFields();
+    }
+
+    // @@protoc_insertion_point(class_scope:openxc.DiagnosticResponse)
+  }
+
+  public interface DynamicFieldOrBuilder
+      extends com.google.protobuf.MessageOrBuilder {
+
+    // optional .openxc.DynamicField.Type type = 1;
+    /**
+     * <code>optional .openxc.DynamicField.Type type = 1;</code>
+     */
+    boolean hasType();
+    /**
+     * <code>optional .openxc.DynamicField.Type type = 1;</code>
+     */
+    com.openxc.BinaryMessages.DynamicField.Type getType();
+
+    // optional string string_value = 2;
+    /**
+     * <code>optional string string_value = 2;</code>
      */
     boolean hasStringValue();
     /**
-     * <code>optional string string_value = 3;</code>
+     * <code>optional string string_value = 2;</code>
      */
     java.lang.String getStringValue();
     /**
-     * <code>optional string string_value = 3;</code>
+     * <code>optional string string_value = 2;</code>
      */
     com.google.protobuf.ByteString
         getStringValueBytes();
 
-    // optional double numeric_value = 4;
+    // optional double numeric_value = 3;
     /**
-     * <code>optional double numeric_value = 4;</code>
+     * <code>optional double numeric_value = 3;</code>
      */
     boolean hasNumericValue();
     /**
-     * <code>optional double numeric_value = 4;</code>
+     * <code>optional double numeric_value = 3;</code>
      */
     double getNumericValue();
 
-    // optional bool boolean_value = 5;
+    // optional bool boolean_value = 4;
     /**
-     * <code>optional bool boolean_value = 5;</code>
+     * <code>optional bool boolean_value = 4;</code>
      */
     boolean hasBooleanValue();
     /**
-     * <code>optional bool boolean_value = 5;</code>
+     * <code>optional bool boolean_value = 4;</code>
      */
     boolean getBooleanValue();
+  }
+  /**
+   * Protobuf type {@code openxc.DynamicField}
+   */
+  public static final class DynamicField extends
+      com.google.protobuf.GeneratedMessage
+      implements DynamicFieldOrBuilder {
+    // Use DynamicField.newBuilder() to construct.
+    private DynamicField(com.google.protobuf.GeneratedMessage.Builder<?> builder) {
+      super(builder);
+      this.unknownFields = builder.getUnknownFields();
+    }
+    private DynamicField(boolean noInit) { this.unknownFields = com.google.protobuf.UnknownFieldSet.getDefaultInstance(); }
 
-    // optional string string_event = 6;
+    private static final DynamicField defaultInstance;
+    public static DynamicField getDefaultInstance() {
+      return defaultInstance;
+    }
+
+    public DynamicField getDefaultInstanceForType() {
+      return defaultInstance;
+    }
+
+    private final com.google.protobuf.UnknownFieldSet unknownFields;
+    @java.lang.Override
+    public final com.google.protobuf.UnknownFieldSet
+        getUnknownFields() {
+      return this.unknownFields;
+    }
+    private DynamicField(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      initFields();
+      int mutable_bitField0_ = 0;
+      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder();
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            default: {
+              if (!parseUnknownField(input, unknownFields,
+                                     extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+            case 8: {
+              int rawValue = input.readEnum();
+              com.openxc.BinaryMessages.DynamicField.Type value = com.openxc.BinaryMessages.DynamicField.Type.valueOf(rawValue);
+              if (value == null) {
+                unknownFields.mergeVarintField(1, rawValue);
+              } else {
+                bitField0_ |= 0x00000001;
+                type_ = value;
+              }
+              break;
+            }
+            case 18: {
+              bitField0_ |= 0x00000002;
+              stringValue_ = input.readBytes();
+              break;
+            }
+            case 25: {
+              bitField0_ |= 0x00000004;
+              numericValue_ = input.readDouble();
+              break;
+            }
+            case 32: {
+              bitField0_ |= 0x00000008;
+              booleanValue_ = input.readBool();
+              break;
+            }
+          }
+        }
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new com.google.protobuf.InvalidProtocolBufferException(
+            e.getMessage()).setUnfinishedMessage(this);
+      } finally {
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return com.openxc.BinaryMessages.internal_static_openxc_DynamicField_descriptor;
+    }
+
+    protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.openxc.BinaryMessages.internal_static_openxc_DynamicField_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.openxc.BinaryMessages.DynamicField.class, com.openxc.BinaryMessages.DynamicField.Builder.class);
+    }
+
+    public static com.google.protobuf.Parser<DynamicField> PARSER =
+        new com.google.protobuf.AbstractParser<DynamicField>() {
+      public DynamicField parsePartialFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return new DynamicField(input, extensionRegistry);
+      }
+    };
+
+    @java.lang.Override
+    public com.google.protobuf.Parser<DynamicField> getParserForType() {
+      return PARSER;
+    }
+
+    /**
+     * Protobuf enum {@code openxc.DynamicField.Type}
+     */
+    public enum Type
+        implements com.google.protobuf.ProtocolMessageEnum {
+      /**
+       * <code>STRING = 1;</code>
+       */
+      STRING(0, 1),
+      /**
+       * <code>NUM = 2;</code>
+       */
+      NUM(1, 2),
+      /**
+       * <code>BOOL = 3;</code>
+       */
+      BOOL(2, 3),
+      ;
+
+      /**
+       * <code>STRING = 1;</code>
+       */
+      public static final int STRING_VALUE = 1;
+      /**
+       * <code>NUM = 2;</code>
+       */
+      public static final int NUM_VALUE = 2;
+      /**
+       * <code>BOOL = 3;</code>
+       */
+      public static final int BOOL_VALUE = 3;
+
+
+      public final int getNumber() { return value; }
+
+      public static Type valueOf(int value) {
+        switch (value) {
+          case 1: return STRING;
+          case 2: return NUM;
+          case 3: return BOOL;
+          default: return null;
+        }
+      }
+
+      public static com.google.protobuf.Internal.EnumLiteMap<Type>
+          internalGetValueMap() {
+        return internalValueMap;
+      }
+      private static com.google.protobuf.Internal.EnumLiteMap<Type>
+          internalValueMap =
+            new com.google.protobuf.Internal.EnumLiteMap<Type>() {
+              public Type findValueByNumber(int number) {
+                return Type.valueOf(number);
+              }
+            };
+
+      public final com.google.protobuf.Descriptors.EnumValueDescriptor
+          getValueDescriptor() {
+        return getDescriptor().getValues().get(index);
+      }
+      public final com.google.protobuf.Descriptors.EnumDescriptor
+          getDescriptorForType() {
+        return getDescriptor();
+      }
+      public static final com.google.protobuf.Descriptors.EnumDescriptor
+          getDescriptor() {
+        return com.openxc.BinaryMessages.DynamicField.getDescriptor().getEnumTypes().get(0);
+      }
+
+      private static final Type[] VALUES = values();
+
+      public static Type valueOf(
+          com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+        if (desc.getType() != getDescriptor()) {
+          throw new java.lang.IllegalArgumentException(
+            "EnumValueDescriptor is not for this type.");
+        }
+        return VALUES[desc.getIndex()];
+      }
+
+      private final int index;
+      private final int value;
+
+      private Type(int index, int value) {
+        this.index = index;
+        this.value = value;
+      }
+
+      // @@protoc_insertion_point(enum_scope:openxc.DynamicField.Type)
+    }
+
+    private int bitField0_;
+    // optional .openxc.DynamicField.Type type = 1;
+    public static final int TYPE_FIELD_NUMBER = 1;
+    private com.openxc.BinaryMessages.DynamicField.Type type_;
     /**
-     * <code>optional string string_event = 6;</code>
+     * <code>optional .openxc.DynamicField.Type type = 1;</code>
      */
-    boolean hasStringEvent();
+    public boolean hasType() {
+      return ((bitField0_ & 0x00000001) == 0x00000001);
+    }
     /**
-     * <code>optional string string_event = 6;</code>
+     * <code>optional .openxc.DynamicField.Type type = 1;</code>
      */
-    java.lang.String getStringEvent();
+    public com.openxc.BinaryMessages.DynamicField.Type getType() {
+      return type_;
+    }
+
+    // optional string string_value = 2;
+    public static final int STRING_VALUE_FIELD_NUMBER = 2;
+    private java.lang.Object stringValue_;
     /**
-     * <code>optional string string_event = 6;</code>
+     * <code>optional string string_value = 2;</code>
+     */
+    public boolean hasStringValue() {
+      return ((bitField0_ & 0x00000002) == 0x00000002);
+    }
+    /**
+     * <code>optional string string_value = 2;</code>
+     */
+    public java.lang.String getStringValue() {
+      java.lang.Object ref = stringValue_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = 
+            (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        if (bs.isValidUtf8()) {
+          stringValue_ = s;
+        }
+        return s;
+      }
+    }
+    /**
+     * <code>optional string string_value = 2;</code>
+     */
+    public com.google.protobuf.ByteString
+        getStringValueBytes() {
+      java.lang.Object ref = stringValue_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b = 
+            com.google.protobuf.ByteString.copyFromUtf8(
+                (java.lang.String) ref);
+        stringValue_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+
+    // optional double numeric_value = 3;
+    public static final int NUMERIC_VALUE_FIELD_NUMBER = 3;
+    private double numericValue_;
+    /**
+     * <code>optional double numeric_value = 3;</code>
+     */
+    public boolean hasNumericValue() {
+      return ((bitField0_ & 0x00000004) == 0x00000004);
+    }
+    /**
+     * <code>optional double numeric_value = 3;</code>
+     */
+    public double getNumericValue() {
+      return numericValue_;
+    }
+
+    // optional bool boolean_value = 4;
+    public static final int BOOLEAN_VALUE_FIELD_NUMBER = 4;
+    private boolean booleanValue_;
+    /**
+     * <code>optional bool boolean_value = 4;</code>
+     */
+    public boolean hasBooleanValue() {
+      return ((bitField0_ & 0x00000008) == 0x00000008);
+    }
+    /**
+     * <code>optional bool boolean_value = 4;</code>
+     */
+    public boolean getBooleanValue() {
+      return booleanValue_;
+    }
+
+    private void initFields() {
+      type_ = com.openxc.BinaryMessages.DynamicField.Type.STRING;
+      stringValue_ = "";
+      numericValue_ = 0D;
+      booleanValue_ = false;
+    }
+    private byte memoizedIsInitialized = -1;
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized != -1) return isInitialized == 1;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    public void writeTo(com.google.protobuf.CodedOutputStream output)
+                        throws java.io.IOException {
+      getSerializedSize();
+      if (((bitField0_ & 0x00000001) == 0x00000001)) {
+        output.writeEnum(1, type_.getNumber());
+      }
+      if (((bitField0_ & 0x00000002) == 0x00000002)) {
+        output.writeBytes(2, getStringValueBytes());
+      }
+      if (((bitField0_ & 0x00000004) == 0x00000004)) {
+        output.writeDouble(3, numericValue_);
+      }
+      if (((bitField0_ & 0x00000008) == 0x00000008)) {
+        output.writeBool(4, booleanValue_);
+      }
+      getUnknownFields().writeTo(output);
+    }
+
+    private int memoizedSerializedSize = -1;
+    public int getSerializedSize() {
+      int size = memoizedSerializedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (((bitField0_ & 0x00000001) == 0x00000001)) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeEnumSize(1, type_.getNumber());
+      }
+      if (((bitField0_ & 0x00000002) == 0x00000002)) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeBytesSize(2, getStringValueBytes());
+      }
+      if (((bitField0_ & 0x00000004) == 0x00000004)) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeDoubleSize(3, numericValue_);
+      }
+      if (((bitField0_ & 0x00000008) == 0x00000008)) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeBoolSize(4, booleanValue_);
+      }
+      size += getUnknownFields().getSerializedSize();
+      memoizedSerializedSize = size;
+      return size;
+    }
+
+    private static final long serialVersionUID = 0L;
+    @java.lang.Override
+    protected java.lang.Object writeReplace()
+        throws java.io.ObjectStreamException {
+      return super.writeReplace();
+    }
+
+    public static com.openxc.BinaryMessages.DynamicField parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static com.openxc.BinaryMessages.DynamicField parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static com.openxc.BinaryMessages.DynamicField parseFrom(byte[] data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static com.openxc.BinaryMessages.DynamicField parseFrom(
+        byte[] data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static com.openxc.BinaryMessages.DynamicField parseFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return PARSER.parseFrom(input);
+    }
+    public static com.openxc.BinaryMessages.DynamicField parseFrom(
+        java.io.InputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return PARSER.parseFrom(input, extensionRegistry);
+    }
+    public static com.openxc.BinaryMessages.DynamicField parseDelimitedFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return PARSER.parseDelimitedFrom(input);
+    }
+    public static com.openxc.BinaryMessages.DynamicField parseDelimitedFrom(
+        java.io.InputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return PARSER.parseDelimitedFrom(input, extensionRegistry);
+    }
+    public static com.openxc.BinaryMessages.DynamicField parseFrom(
+        com.google.protobuf.CodedInputStream input)
+        throws java.io.IOException {
+      return PARSER.parseFrom(input);
+    }
+    public static com.openxc.BinaryMessages.DynamicField parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return PARSER.parseFrom(input, extensionRegistry);
+    }
+
+    public static Builder newBuilder() { return Builder.create(); }
+    public Builder newBuilderForType() { return newBuilder(); }
+    public static Builder newBuilder(com.openxc.BinaryMessages.DynamicField prototype) {
+      return newBuilder().mergeFrom(prototype);
+    }
+    public Builder toBuilder() { return newBuilder(this); }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessage.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     * Protobuf type {@code openxc.DynamicField}
+     */
+    public static final class Builder extends
+        com.google.protobuf.GeneratedMessage.Builder<Builder>
+       implements com.openxc.BinaryMessages.DynamicFieldOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor
+          getDescriptor() {
+        return com.openxc.BinaryMessages.internal_static_openxc_DynamicField_descriptor;
+      }
+
+      protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.openxc.BinaryMessages.internal_static_openxc_DynamicField_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.openxc.BinaryMessages.DynamicField.class, com.openxc.BinaryMessages.DynamicField.Builder.class);
+      }
+
+      // Construct using com.openxc.BinaryMessages.DynamicField.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(
+          com.google.protobuf.GeneratedMessage.BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessage.alwaysUseFieldBuilders) {
+        }
+      }
+      private static Builder create() {
+        return new Builder();
+      }
+
+      public Builder clear() {
+        super.clear();
+        type_ = com.openxc.BinaryMessages.DynamicField.Type.STRING;
+        bitField0_ = (bitField0_ & ~0x00000001);
+        stringValue_ = "";
+        bitField0_ = (bitField0_ & ~0x00000002);
+        numericValue_ = 0D;
+        bitField0_ = (bitField0_ & ~0x00000004);
+        booleanValue_ = false;
+        bitField0_ = (bitField0_ & ~0x00000008);
+        return this;
+      }
+
+      public Builder clone() {
+        return create().mergeFrom(buildPartial());
+      }
+
+      public com.google.protobuf.Descriptors.Descriptor
+          getDescriptorForType() {
+        return com.openxc.BinaryMessages.internal_static_openxc_DynamicField_descriptor;
+      }
+
+      public com.openxc.BinaryMessages.DynamicField getDefaultInstanceForType() {
+        return com.openxc.BinaryMessages.DynamicField.getDefaultInstance();
+      }
+
+      public com.openxc.BinaryMessages.DynamicField build() {
+        com.openxc.BinaryMessages.DynamicField result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      public com.openxc.BinaryMessages.DynamicField buildPartial() {
+        com.openxc.BinaryMessages.DynamicField result = new com.openxc.BinaryMessages.DynamicField(this);
+        int from_bitField0_ = bitField0_;
+        int to_bitField0_ = 0;
+        if (((from_bitField0_ & 0x00000001) == 0x00000001)) {
+          to_bitField0_ |= 0x00000001;
+        }
+        result.type_ = type_;
+        if (((from_bitField0_ & 0x00000002) == 0x00000002)) {
+          to_bitField0_ |= 0x00000002;
+        }
+        result.stringValue_ = stringValue_;
+        if (((from_bitField0_ & 0x00000004) == 0x00000004)) {
+          to_bitField0_ |= 0x00000004;
+        }
+        result.numericValue_ = numericValue_;
+        if (((from_bitField0_ & 0x00000008) == 0x00000008)) {
+          to_bitField0_ |= 0x00000008;
+        }
+        result.booleanValue_ = booleanValue_;
+        result.bitField0_ = to_bitField0_;
+        onBuilt();
+        return result;
+      }
+
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof com.openxc.BinaryMessages.DynamicField) {
+          return mergeFrom((com.openxc.BinaryMessages.DynamicField)other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(com.openxc.BinaryMessages.DynamicField other) {
+        if (other == com.openxc.BinaryMessages.DynamicField.getDefaultInstance()) return this;
+        if (other.hasType()) {
+          setType(other.getType());
+        }
+        if (other.hasStringValue()) {
+          bitField0_ |= 0x00000002;
+          stringValue_ = other.stringValue_;
+          onChanged();
+        }
+        if (other.hasNumericValue()) {
+          setNumericValue(other.getNumericValue());
+        }
+        if (other.hasBooleanValue()) {
+          setBooleanValue(other.getBooleanValue());
+        }
+        this.mergeUnknownFields(other.getUnknownFields());
+        return this;
+      }
+
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        com.openxc.BinaryMessages.DynamicField parsedMessage = null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage = (com.openxc.BinaryMessages.DynamicField) e.getUnfinishedMessage();
+          throw e;
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+      private int bitField0_;
+
+      // optional .openxc.DynamicField.Type type = 1;
+      private com.openxc.BinaryMessages.DynamicField.Type type_ = com.openxc.BinaryMessages.DynamicField.Type.STRING;
+      /**
+       * <code>optional .openxc.DynamicField.Type type = 1;</code>
+       */
+      public boolean hasType() {
+        return ((bitField0_ & 0x00000001) == 0x00000001);
+      }
+      /**
+       * <code>optional .openxc.DynamicField.Type type = 1;</code>
+       */
+      public com.openxc.BinaryMessages.DynamicField.Type getType() {
+        return type_;
+      }
+      /**
+       * <code>optional .openxc.DynamicField.Type type = 1;</code>
+       */
+      public Builder setType(com.openxc.BinaryMessages.DynamicField.Type value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        bitField0_ |= 0x00000001;
+        type_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>optional .openxc.DynamicField.Type type = 1;</code>
+       */
+      public Builder clearType() {
+        bitField0_ = (bitField0_ & ~0x00000001);
+        type_ = com.openxc.BinaryMessages.DynamicField.Type.STRING;
+        onChanged();
+        return this;
+      }
+
+      // optional string string_value = 2;
+      private java.lang.Object stringValue_ = "";
+      /**
+       * <code>optional string string_value = 2;</code>
+       */
+      public boolean hasStringValue() {
+        return ((bitField0_ & 0x00000002) == 0x00000002);
+      }
+      /**
+       * <code>optional string string_value = 2;</code>
+       */
+      public java.lang.String getStringValue() {
+        java.lang.Object ref = stringValue_;
+        if (!(ref instanceof java.lang.String)) {
+          java.lang.String s = ((com.google.protobuf.ByteString) ref)
+              .toStringUtf8();
+          stringValue_ = s;
+          return s;
+        } else {
+          return (java.lang.String) ref;
+        }
+      }
+      /**
+       * <code>optional string string_value = 2;</code>
+       */
+      public com.google.protobuf.ByteString
+          getStringValueBytes() {
+        java.lang.Object ref = stringValue_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b = 
+              com.google.protobuf.ByteString.copyFromUtf8(
+                  (java.lang.String) ref);
+          stringValue_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+      /**
+       * <code>optional string string_value = 2;</code>
+       */
+      public Builder setStringValue(
+          java.lang.String value) {
+        if (value == null) {
+    throw new NullPointerException();
+  }
+  bitField0_ |= 0x00000002;
+        stringValue_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>optional string string_value = 2;</code>
+       */
+      public Builder clearStringValue() {
+        bitField0_ = (bitField0_ & ~0x00000002);
+        stringValue_ = getDefaultInstance().getStringValue();
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>optional string string_value = 2;</code>
+       */
+      public Builder setStringValueBytes(
+          com.google.protobuf.ByteString value) {
+        if (value == null) {
+    throw new NullPointerException();
+  }
+  bitField0_ |= 0x00000002;
+        stringValue_ = value;
+        onChanged();
+        return this;
+      }
+
+      // optional double numeric_value = 3;
+      private double numericValue_ ;
+      /**
+       * <code>optional double numeric_value = 3;</code>
+       */
+      public boolean hasNumericValue() {
+        return ((bitField0_ & 0x00000004) == 0x00000004);
+      }
+      /**
+       * <code>optional double numeric_value = 3;</code>
+       */
+      public double getNumericValue() {
+        return numericValue_;
+      }
+      /**
+       * <code>optional double numeric_value = 3;</code>
+       */
+      public Builder setNumericValue(double value) {
+        bitField0_ |= 0x00000004;
+        numericValue_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>optional double numeric_value = 3;</code>
+       */
+      public Builder clearNumericValue() {
+        bitField0_ = (bitField0_ & ~0x00000004);
+        numericValue_ = 0D;
+        onChanged();
+        return this;
+      }
+
+      // optional bool boolean_value = 4;
+      private boolean booleanValue_ ;
+      /**
+       * <code>optional bool boolean_value = 4;</code>
+       */
+      public boolean hasBooleanValue() {
+        return ((bitField0_ & 0x00000008) == 0x00000008);
+      }
+      /**
+       * <code>optional bool boolean_value = 4;</code>
+       */
+      public boolean getBooleanValue() {
+        return booleanValue_;
+      }
+      /**
+       * <code>optional bool boolean_value = 4;</code>
+       */
+      public Builder setBooleanValue(boolean value) {
+        bitField0_ |= 0x00000008;
+        booleanValue_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>optional bool boolean_value = 4;</code>
+       */
+      public Builder clearBooleanValue() {
+        bitField0_ = (bitField0_ & ~0x00000008);
+        booleanValue_ = false;
+        onChanged();
+        return this;
+      }
+
+      // @@protoc_insertion_point(builder_scope:openxc.DynamicField)
+    }
+
+    static {
+      defaultInstance = new DynamicField(true);
+      defaultInstance.initFields();
+    }
+
+    // @@protoc_insertion_point(class_scope:openxc.DynamicField)
+  }
+
+  public interface TranslatedMessageOrBuilder
+      extends com.google.protobuf.MessageOrBuilder {
+
+    // optional .openxc.TranslatedMessage.Type type = 1;
+    /**
+     * <code>optional .openxc.TranslatedMessage.Type type = 1;</code>
+     */
+    boolean hasType();
+    /**
+     * <code>optional .openxc.TranslatedMessage.Type type = 1;</code>
+     */
+    com.openxc.BinaryMessages.TranslatedMessage.Type getType();
+
+    // optional string name = 2;
+    /**
+     * <code>optional string name = 2;</code>
+     */
+    boolean hasName();
+    /**
+     * <code>optional string name = 2;</code>
+     */
+    java.lang.String getName();
+    /**
+     * <code>optional string name = 2;</code>
      */
     com.google.protobuf.ByteString
-        getStringEventBytes();
+        getNameBytes();
 
-    // optional double numeric_event = 7;
+    // optional .openxc.DynamicField value = 3;
     /**
-     * <code>optional double numeric_event = 7;</code>
+     * <code>optional .openxc.DynamicField value = 3;</code>
      */
-    boolean hasNumericEvent();
+    boolean hasValue();
     /**
-     * <code>optional double numeric_event = 7;</code>
+     * <code>optional .openxc.DynamicField value = 3;</code>
      */
-    double getNumericEvent();
+    com.openxc.BinaryMessages.DynamicField getValue();
+    /**
+     * <code>optional .openxc.DynamicField value = 3;</code>
+     */
+    com.openxc.BinaryMessages.DynamicFieldOrBuilder getValueOrBuilder();
 
-    // optional bool boolean_event = 8;
+    // optional .openxc.DynamicField event = 4;
+    /**
+     * <code>optional .openxc.DynamicField event = 4;</code>
+     */
+    boolean hasEvent();
     /**
-     * <code>optional bool boolean_event = 8;</code>
+     * <code>optional .openxc.DynamicField event = 4;</code>
      */
-    boolean hasBooleanEvent();
+    com.openxc.BinaryMessages.DynamicField getEvent();
     /**
-     * <code>optional bool boolean_event = 8;</code>
+     * <code>optional .openxc.DynamicField event = 4;</code>
      */
-    boolean getBooleanEvent();
+    com.openxc.BinaryMessages.DynamicFieldOrBuilder getEventOrBuilder();
   }
   /**
    * Protobuf type {@code openxc.TranslatedMessage}
@@ -1603,33 +6489,29 @@ public final class BinaryMessages {
               break;
             }
             case 26: {
+              com.openxc.BinaryMessages.DynamicField.Builder subBuilder = null;
+              if (((bitField0_ & 0x00000004) == 0x00000004)) {
+                subBuilder = value_.toBuilder();
+              }
+              value_ = input.readMessage(com.openxc.BinaryMessages.DynamicField.PARSER, extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(value_);
+                value_ = subBuilder.buildPartial();
+              }
               bitField0_ |= 0x00000004;
-              stringValue_ = input.readBytes();
               break;
             }
-            case 33: {
+            case 34: {
+              com.openxc.BinaryMessages.DynamicField.Builder subBuilder = null;
+              if (((bitField0_ & 0x00000008) == 0x00000008)) {
+                subBuilder = event_.toBuilder();
+              }
+              event_ = input.readMessage(com.openxc.BinaryMessages.DynamicField.PARSER, extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(event_);
+                event_ = subBuilder.buildPartial();
+              }
               bitField0_ |= 0x00000008;
-              numericValue_ = input.readDouble();
-              break;
-            }
-            case 40: {
-              bitField0_ |= 0x00000010;
-              booleanValue_ = input.readBool();
-              break;
-            }
-            case 50: {
-              bitField0_ |= 0x00000020;
-              stringEvent_ = input.readBytes();
-              break;
-            }
-            case 57: {
-              bitField0_ |= 0x00000040;
-              numericEvent_ = input.readDouble();
-              break;
-            }
-            case 64: {
-              bitField0_ |= 0x00000080;
-              booleanEvent_ = input.readBool();
               break;
             }
           }
@@ -1849,165 +6731,55 @@ public final class BinaryMessages {
       }
     }
 
-    // optional string string_value = 3;
-    public static final int STRING_VALUE_FIELD_NUMBER = 3;
-    private java.lang.Object stringValue_;
+    // optional .openxc.DynamicField value = 3;
+    public static final int VALUE_FIELD_NUMBER = 3;
+    private com.openxc.BinaryMessages.DynamicField value_;
     /**
-     * <code>optional string string_value = 3;</code>
+     * <code>optional .openxc.DynamicField value = 3;</code>
      */
-    public boolean hasStringValue() {
+    public boolean hasValue() {
       return ((bitField0_ & 0x00000004) == 0x00000004);
     }
     /**
-     * <code>optional string string_value = 3;</code>
+     * <code>optional .openxc.DynamicField value = 3;</code>
      */
-    public java.lang.String getStringValue() {
-      java.lang.Object ref = stringValue_;
-      if (ref instanceof java.lang.String) {
-        return (java.lang.String) ref;
-      } else {
-        com.google.protobuf.ByteString bs = 
-            (com.google.protobuf.ByteString) ref;
-        java.lang.String s = bs.toStringUtf8();
-        if (bs.isValidUtf8()) {
-          stringValue_ = s;
-        }
-        return s;
-      }
+    public com.openxc.BinaryMessages.DynamicField getValue() {
+      return value_;
     }
     /**
-     * <code>optional string string_value = 3;</code>
+     * <code>optional .openxc.DynamicField value = 3;</code>
      */
-    public com.google.protobuf.ByteString
-        getStringValueBytes() {
-      java.lang.Object ref = stringValue_;
-      if (ref instanceof java.lang.String) {
-        com.google.protobuf.ByteString b = 
-            com.google.protobuf.ByteString.copyFromUtf8(
-                (java.lang.String) ref);
-        stringValue_ = b;
-        return b;
-      } else {
-        return (com.google.protobuf.ByteString) ref;
-      }
+    public com.openxc.BinaryMessages.DynamicFieldOrBuilder getValueOrBuilder() {
+      return value_;
     }
 
-    // optional double numeric_value = 4;
-    public static final int NUMERIC_VALUE_FIELD_NUMBER = 4;
-    private double numericValue_;
+    // optional .openxc.DynamicField event = 4;
+    public static final int EVENT_FIELD_NUMBER = 4;
+    private com.openxc.BinaryMessages.DynamicField event_;
     /**
-     * <code>optional double numeric_value = 4;</code>
+     * <code>optional .openxc.DynamicField event = 4;</code>
      */
-    public boolean hasNumericValue() {
+    public boolean hasEvent() {
       return ((bitField0_ & 0x00000008) == 0x00000008);
     }
     /**
-     * <code>optional double numeric_value = 4;</code>
-     */
-    public double getNumericValue() {
-      return numericValue_;
-    }
-
-    // optional bool boolean_value = 5;
-    public static final int BOOLEAN_VALUE_FIELD_NUMBER = 5;
-    private boolean booleanValue_;
-    /**
-     * <code>optional bool boolean_value = 5;</code>
+     * <code>optional .openxc.DynamicField event = 4;</code>
      */
-    public boolean hasBooleanValue() {
-      return ((bitField0_ & 0x00000010) == 0x00000010);
+    public com.openxc.BinaryMessages.DynamicField getEvent() {
+      return event_;
     }
     /**
-     * <code>optional bool boolean_value = 5;</code>
+     * <code>optional .openxc.DynamicField event = 4;</code>
      */
-    public boolean getBooleanValue() {
-      return booleanValue_;
-    }
-
-    // optional string string_event = 6;
-    public static final int STRING_EVENT_FIELD_NUMBER = 6;
-    private java.lang.Object stringEvent_;
-    /**
-     * <code>optional string string_event = 6;</code>
-     */
-    public boolean hasStringEvent() {
-      return ((bitField0_ & 0x00000020) == 0x00000020);
-    }
-    /**
-     * <code>optional string string_event = 6;</code>
-     */
-    public java.lang.String getStringEvent() {
-      java.lang.Object ref = stringEvent_;
-      if (ref instanceof java.lang.String) {
-        return (java.lang.String) ref;
-      } else {
-        com.google.protobuf.ByteString bs = 
-            (com.google.protobuf.ByteString) ref;
-        java.lang.String s = bs.toStringUtf8();
-        if (bs.isValidUtf8()) {
-          stringEvent_ = s;
-        }
-        return s;
-      }
-    }
-    /**
-     * <code>optional string string_event = 6;</code>
-     */
-    public com.google.protobuf.ByteString
-        getStringEventBytes() {
-      java.lang.Object ref = stringEvent_;
-      if (ref instanceof java.lang.String) {
-        com.google.protobuf.ByteString b = 
-            com.google.protobuf.ByteString.copyFromUtf8(
-                (java.lang.String) ref);
-        stringEvent_ = b;
-        return b;
-      } else {
-        return (com.google.protobuf.ByteString) ref;
-      }
-    }
-
-    // optional double numeric_event = 7;
-    public static final int NUMERIC_EVENT_FIELD_NUMBER = 7;
-    private double numericEvent_;
-    /**
-     * <code>optional double numeric_event = 7;</code>
-     */
-    public boolean hasNumericEvent() {
-      return ((bitField0_ & 0x00000040) == 0x00000040);
-    }
-    /**
-     * <code>optional double numeric_event = 7;</code>
-     */
-    public double getNumericEvent() {
-      return numericEvent_;
-    }
-
-    // optional bool boolean_event = 8;
-    public static final int BOOLEAN_EVENT_FIELD_NUMBER = 8;
-    private boolean booleanEvent_;
-    /**
-     * <code>optional bool boolean_event = 8;</code>
-     */
-    public boolean hasBooleanEvent() {
-      return ((bitField0_ & 0x00000080) == 0x00000080);
-    }
-    /**
-     * <code>optional bool boolean_event = 8;</code>
-     */
-    public boolean getBooleanEvent() {
-      return booleanEvent_;
+    public com.openxc.BinaryMessages.DynamicFieldOrBuilder getEventOrBuilder() {
+      return event_;
     }
 
     private void initFields() {
       type_ = com.openxc.BinaryMessages.TranslatedMessage.Type.STRING;
       name_ = "";
-      stringValue_ = "";
-      numericValue_ = 0D;
-      booleanValue_ = false;
-      stringEvent_ = "";
-      numericEvent_ = 0D;
-      booleanEvent_ = false;
+      value_ = com.openxc.BinaryMessages.DynamicField.getDefaultInstance();
+      event_ = com.openxc.BinaryMessages.DynamicField.getDefaultInstance();
     }
     private byte memoizedIsInitialized = -1;
     public final boolean isInitialized() {
@@ -2028,22 +6800,10 @@ public final class BinaryMessages {
         output.writeBytes(2, getNameBytes());
       }
       if (((bitField0_ & 0x00000004) == 0x00000004)) {
-        output.writeBytes(3, getStringValueBytes());
+        output.writeMessage(3, value_);
       }
       if (((bitField0_ & 0x00000008) == 0x00000008)) {
-        output.writeDouble(4, numericValue_);
-      }
-      if (((bitField0_ & 0x00000010) == 0x00000010)) {
-        output.writeBool(5, booleanValue_);
-      }
-      if (((bitField0_ & 0x00000020) == 0x00000020)) {
-        output.writeBytes(6, getStringEventBytes());
-      }
-      if (((bitField0_ & 0x00000040) == 0x00000040)) {
-        output.writeDouble(7, numericEvent_);
-      }
-      if (((bitField0_ & 0x00000080) == 0x00000080)) {
-        output.writeBool(8, booleanEvent_);
+        output.writeMessage(4, event_);
       }
       getUnknownFields().writeTo(output);
     }
@@ -2064,27 +6824,11 @@ public final class BinaryMessages {
       }
       if (((bitField0_ & 0x00000004) == 0x00000004)) {
         size += com.google.protobuf.CodedOutputStream
-          .computeBytesSize(3, getStringValueBytes());
+          .computeMessageSize(3, value_);
       }
       if (((bitField0_ & 0x00000008) == 0x00000008)) {
         size += com.google.protobuf.CodedOutputStream
-          .computeDoubleSize(4, numericValue_);
-      }
-      if (((bitField0_ & 0x00000010) == 0x00000010)) {
-        size += com.google.protobuf.CodedOutputStream
-          .computeBoolSize(5, booleanValue_);
-      }
-      if (((bitField0_ & 0x00000020) == 0x00000020)) {
-        size += com.google.protobuf.CodedOutputStream
-          .computeBytesSize(6, getStringEventBytes());
-      }
-      if (((bitField0_ & 0x00000040) == 0x00000040)) {
-        size += com.google.protobuf.CodedOutputStream
-          .computeDoubleSize(7, numericEvent_);
-      }
-      if (((bitField0_ & 0x00000080) == 0x00000080)) {
-        size += com.google.protobuf.CodedOutputStream
-          .computeBoolSize(8, booleanEvent_);
+          .computeMessageSize(4, event_);
       }
       size += getUnknownFields().getSerializedSize();
       memoizedSerializedSize = size;
@@ -2194,6 +6938,8 @@ public final class BinaryMessages {
       }
       private void maybeForceBuilderInitialization() {
         if (com.google.protobuf.GeneratedMessage.alwaysUseFieldBuilders) {
+          getValueFieldBuilder();
+          getEventFieldBuilder();
         }
       }
       private static Builder create() {
@@ -2206,18 +6952,18 @@ public final class BinaryMessages {
         bitField0_ = (bitField0_ & ~0x00000001);
         name_ = "";
         bitField0_ = (bitField0_ & ~0x00000002);
-        stringValue_ = "";
+        if (valueBuilder_ == null) {
+          value_ = com.openxc.BinaryMessages.DynamicField.getDefaultInstance();
+        } else {
+          valueBuilder_.clear();
+        }
         bitField0_ = (bitField0_ & ~0x00000004);
-        numericValue_ = 0D;
+        if (eventBuilder_ == null) {
+          event_ = com.openxc.BinaryMessages.DynamicField.getDefaultInstance();
+        } else {
+          eventBuilder_.clear();
+        }
         bitField0_ = (bitField0_ & ~0x00000008);
-        booleanValue_ = false;
-        bitField0_ = (bitField0_ & ~0x00000010);
-        stringEvent_ = "";
-        bitField0_ = (bitField0_ & ~0x00000020);
-        numericEvent_ = 0D;
-        bitField0_ = (bitField0_ & ~0x00000040);
-        booleanEvent_ = false;
-        bitField0_ = (bitField0_ & ~0x00000080);
         return this;
       }
 
@@ -2257,27 +7003,19 @@ public final class BinaryMessages {
         if (((from_bitField0_ & 0x00000004) == 0x00000004)) {
           to_bitField0_ |= 0x00000004;
         }
-        result.stringValue_ = stringValue_;
+        if (valueBuilder_ == null) {
+          result.value_ = value_;
+        } else {
+          result.value_ = valueBuilder_.build();
+        }
         if (((from_bitField0_ & 0x00000008) == 0x00000008)) {
           to_bitField0_ |= 0x00000008;
         }
-        result.numericValue_ = numericValue_;
-        if (((from_bitField0_ & 0x00000010) == 0x00000010)) {
-          to_bitField0_ |= 0x00000010;
-        }
-        result.booleanValue_ = booleanValue_;
-        if (((from_bitField0_ & 0x00000020) == 0x00000020)) {
-          to_bitField0_ |= 0x00000020;
-        }
-        result.stringEvent_ = stringEvent_;
-        if (((from_bitField0_ & 0x00000040) == 0x00000040)) {
-          to_bitField0_ |= 0x00000040;
-        }
-        result.numericEvent_ = numericEvent_;
-        if (((from_bitField0_ & 0x00000080) == 0x00000080)) {
-          to_bitField0_ |= 0x00000080;
+        if (eventBuilder_ == null) {
+          result.event_ = event_;
+        } else {
+          result.event_ = eventBuilder_.build();
         }
-        result.booleanEvent_ = booleanEvent_;
         result.bitField0_ = to_bitField0_;
         onBuilt();
         return result;
@@ -2302,27 +7040,11 @@ public final class BinaryMessages {
           name_ = other.name_;
           onChanged();
         }
-        if (other.hasStringValue()) {
-          bitField0_ |= 0x00000004;
-          stringValue_ = other.stringValue_;
-          onChanged();
+        if (other.hasValue()) {
+          mergeValue(other.getValue());
         }
-        if (other.hasNumericValue()) {
-          setNumericValue(other.getNumericValue());
-        }
-        if (other.hasBooleanValue()) {
-          setBooleanValue(other.getBooleanValue());
-        }
-        if (other.hasStringEvent()) {
-          bitField0_ |= 0x00000020;
-          stringEvent_ = other.stringEvent_;
-          onChanged();
-        }
-        if (other.hasNumericEvent()) {
-          setNumericEvent(other.getNumericEvent());
-        }
-        if (other.hasBooleanEvent()) {
-          setBooleanEvent(other.getBooleanEvent());
+        if (other.hasEvent()) {
+          mergeEvent(other.getEvent());
         }
         this.mergeUnknownFields(other.getUnknownFields());
         return this;
@@ -2461,284 +7183,238 @@ public final class BinaryMessages {
         return this;
       }
 
-      // optional string string_value = 3;
-      private java.lang.Object stringValue_ = "";
+      // optional .openxc.DynamicField value = 3;
+      private com.openxc.BinaryMessages.DynamicField value_ = com.openxc.BinaryMessages.DynamicField.getDefaultInstance();
+      private com.google.protobuf.SingleFieldBuilder<
+          com.openxc.BinaryMessages.DynamicField, com.openxc.BinaryMessages.DynamicField.Builder, com.openxc.BinaryMessages.DynamicFieldOrBuilder> valueBuilder_;
       /**
-       * <code>optional string string_value = 3;</code>
+       * <code>optional .openxc.DynamicField value = 3;</code>
        */
-      public boolean hasStringValue() {
+      public boolean hasValue() {
         return ((bitField0_ & 0x00000004) == 0x00000004);
       }
       /**
-       * <code>optional string string_value = 3;</code>
+       * <code>optional .openxc.DynamicField value = 3;</code>
        */
-      public java.lang.String getStringValue() {
-        java.lang.Object ref = stringValue_;
-        if (!(ref instanceof java.lang.String)) {
-          java.lang.String s = ((com.google.protobuf.ByteString) ref)
-              .toStringUtf8();
-          stringValue_ = s;
-          return s;
+      public com.openxc.BinaryMessages.DynamicField getValue() {
+        if (valueBuilder_ == null) {
+          return value_;
         } else {
-          return (java.lang.String) ref;
+          return valueBuilder_.getMessage();
         }
       }
       /**
-       * <code>optional string string_value = 3;</code>
+       * <code>optional .openxc.DynamicField value = 3;</code>
        */
-      public com.google.protobuf.ByteString
-          getStringValueBytes() {
-        java.lang.Object ref = stringValue_;
-        if (ref instanceof String) {
-          com.google.protobuf.ByteString b = 
-              com.google.protobuf.ByteString.copyFromUtf8(
-                  (java.lang.String) ref);
-          stringValue_ = b;
-          return b;
+      public Builder setValue(com.openxc.BinaryMessages.DynamicField value) {
+        if (valueBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          value_ = value;
+          onChanged();
         } else {
-          return (com.google.protobuf.ByteString) ref;
+          valueBuilder_.setMessage(value);
         }
-      }
-      /**
-       * <code>optional string string_value = 3;</code>
-       */
-      public Builder setStringValue(
-          java.lang.String value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  bitField0_ |= 0x00000004;
-        stringValue_ = value;
-        onChanged();
+        bitField0_ |= 0x00000004;
         return this;
       }
       /**
-       * <code>optional string string_value = 3;</code>
+       * <code>optional .openxc.DynamicField value = 3;</code>
        */
-      public Builder clearStringValue() {
-        bitField0_ = (bitField0_ & ~0x00000004);
-        stringValue_ = getDefaultInstance().getStringValue();
-        onChanged();
+      public Builder setValue(
+          com.openxc.BinaryMessages.DynamicField.Builder builderForValue) {
+        if (valueBuilder_ == null) {
+          value_ = builderForValue.build();
+          onChanged();
+        } else {
+          valueBuilder_.setMessage(builderForValue.build());
+        }
+        bitField0_ |= 0x00000004;
         return this;
       }
       /**
-       * <code>optional string string_value = 3;</code>
+       * <code>optional .openxc.DynamicField value = 3;</code>
        */
-      public Builder setStringValueBytes(
-          com.google.protobuf.ByteString value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  bitField0_ |= 0x00000004;
-        stringValue_ = value;
-        onChanged();
+      public Builder mergeValue(com.openxc.BinaryMessages.DynamicField value) {
+        if (valueBuilder_ == null) {
+          if (((bitField0_ & 0x00000004) == 0x00000004) &&
+              value_ != com.openxc.BinaryMessages.DynamicField.getDefaultInstance()) {
+            value_ =
+              com.openxc.BinaryMessages.DynamicField.newBuilder(value_).mergeFrom(value).buildPartial();
+          } else {
+            value_ = value;
+          }
+          onChanged();
+        } else {
+          valueBuilder_.mergeFrom(value);
+        }
+        bitField0_ |= 0x00000004;
         return this;
       }
-
-      // optional double numeric_value = 4;
-      private double numericValue_ ;
       /**
-       * <code>optional double numeric_value = 4;</code>
+       * <code>optional .openxc.DynamicField value = 3;</code>
        */
-      public boolean hasNumericValue() {
-        return ((bitField0_ & 0x00000008) == 0x00000008);
-      }
-      /**
-       * <code>optional double numeric_value = 4;</code>
-       */
-      public double getNumericValue() {
-        return numericValue_;
-      }
-      /**
-       * <code>optional double numeric_value = 4;</code>
-       */
-      public Builder setNumericValue(double value) {
-        bitField0_ |= 0x00000008;
-        numericValue_ = value;
-        onChanged();
+      public Builder clearValue() {
+        if (valueBuilder_ == null) {
+          value_ = com.openxc.BinaryMessages.DynamicField.getDefaultInstance();
+          onChanged();
+        } else {
+          valueBuilder_.clear();
+        }
+        bitField0_ = (bitField0_ & ~0x00000004);
         return this;
       }
       /**
-       * <code>optional double numeric_value = 4;</code>
+       * <code>optional .openxc.DynamicField value = 3;</code>
        */
-      public Builder clearNumericValue() {
-        bitField0_ = (bitField0_ & ~0x00000008);
-        numericValue_ = 0D;
+      public com.openxc.BinaryMessages.DynamicField.Builder getValueBuilder() {
+        bitField0_ |= 0x00000004;
         onChanged();
-        return this;
-      }
-
-      // optional bool boolean_value = 5;
-      private boolean booleanValue_ ;
-      /**
-       * <code>optional bool boolean_value = 5;</code>
-       */
-      public boolean hasBooleanValue() {
-        return ((bitField0_ & 0x00000010) == 0x00000010);
-      }
-      /**
-       * <code>optional bool boolean_value = 5;</code>
-       */
-      public boolean getBooleanValue() {
-        return booleanValue_;
+        return getValueFieldBuilder().getBuilder();
       }
       /**
-       * <code>optional bool boolean_value = 5;</code>
+       * <code>optional .openxc.DynamicField value = 3;</code>
        */
-      public Builder setBooleanValue(boolean value) {
-        bitField0_ |= 0x00000010;
-        booleanValue_ = value;
-        onChanged();
-        return this;
+      public com.openxc.BinaryMessages.DynamicFieldOrBuilder getValueOrBuilder() {
+        if (valueBuilder_ != null) {
+          return valueBuilder_.getMessageOrBuilder();
+        } else {
+          return value_;
+        }
       }
       /**
-       * <code>optional bool boolean_value = 5;</code>
+       * <code>optional .openxc.DynamicField value = 3;</code>
        */
-      public Builder clearBooleanValue() {
-        bitField0_ = (bitField0_ & ~0x00000010);
-        booleanValue_ = false;
-        onChanged();
-        return this;
+      private com.google.protobuf.SingleFieldBuilder<
+          com.openxc.BinaryMessages.DynamicField, com.openxc.BinaryMessages.DynamicField.Builder, com.openxc.BinaryMessages.DynamicFieldOrBuilder> 
+          getValueFieldBuilder() {
+        if (valueBuilder_ == null) {
+          valueBuilder_ = new com.google.protobuf.SingleFieldBuilder<
+              com.openxc.BinaryMessages.DynamicField, com.openxc.BinaryMessages.DynamicField.Builder, com.openxc.BinaryMessages.DynamicFieldOrBuilder>(
+                  value_,
+                  getParentForChildren(),
+                  isClean());
+          value_ = null;
+        }
+        return valueBuilder_;
       }
 
-      // optional string string_event = 6;
-      private java.lang.Object stringEvent_ = "";
+      // optional .openxc.DynamicField event = 4;
+      private com.openxc.BinaryMessages.DynamicField event_ = com.openxc.BinaryMessages.DynamicField.getDefaultInstance();
+      private com.google.protobuf.SingleFieldBuilder<
+          com.openxc.BinaryMessages.DynamicField, com.openxc.BinaryMessages.DynamicField.Builder, com.openxc.BinaryMessages.DynamicFieldOrBuilder> eventBuilder_;
       /**
-       * <code>optional string string_event = 6;</code>
+       * <code>optional .openxc.DynamicField event = 4;</code>
        */
-      public boolean hasStringEvent() {
-        return ((bitField0_ & 0x00000020) == 0x00000020);
+      public boolean hasEvent() {
+        return ((bitField0_ & 0x00000008) == 0x00000008);
       }
       /**
-       * <code>optional string string_event = 6;</code>
+       * <code>optional .openxc.DynamicField event = 4;</code>
        */
-      public java.lang.String getStringEvent() {
-        java.lang.Object ref = stringEvent_;
-        if (!(ref instanceof java.lang.String)) {
-          java.lang.String s = ((com.google.protobuf.ByteString) ref)
-              .toStringUtf8();
-          stringEvent_ = s;
-          return s;
+      public com.openxc.BinaryMessages.DynamicField getEvent() {
+        if (eventBuilder_ == null) {
+          return event_;
         } else {
-          return (java.lang.String) ref;
+          return eventBuilder_.getMessage();
         }
       }
       /**
-       * <code>optional string string_event = 6;</code>
+       * <code>optional .openxc.DynamicField event = 4;</code>
        */
-      public com.google.protobuf.ByteString
-          getStringEventBytes() {
-        java.lang.Object ref = stringEvent_;
-        if (ref instanceof String) {
-          com.google.protobuf.ByteString b = 
-              com.google.protobuf.ByteString.copyFromUtf8(
-                  (java.lang.String) ref);
-          stringEvent_ = b;
-          return b;
+      public Builder setEvent(com.openxc.BinaryMessages.DynamicField value) {
+        if (eventBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          event_ = value;
+          onChanged();
         } else {
-          return (com.google.protobuf.ByteString) ref;
+          eventBuilder_.setMessage(value);
         }
-      }
-      /**
-       * <code>optional string string_event = 6;</code>
-       */
-      public Builder setStringEvent(
-          java.lang.String value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  bitField0_ |= 0x00000020;
-        stringEvent_ = value;
-        onChanged();
+        bitField0_ |= 0x00000008;
         return this;
       }
       /**
-       * <code>optional string string_event = 6;</code>
+       * <code>optional .openxc.DynamicField event = 4;</code>
        */
-      public Builder clearStringEvent() {
-        bitField0_ = (bitField0_ & ~0x00000020);
-        stringEvent_ = getDefaultInstance().getStringEvent();
-        onChanged();
+      public Builder setEvent(
+          com.openxc.BinaryMessages.DynamicField.Builder builderForValue) {
+        if (eventBuilder_ == null) {
+          event_ = builderForValue.build();
+          onChanged();
+        } else {
+          eventBuilder_.setMessage(builderForValue.build());
+        }
+        bitField0_ |= 0x00000008;
         return this;
       }
       /**
-       * <code>optional string string_event = 6;</code>
+       * <code>optional .openxc.DynamicField event = 4;</code>
        */
-      public Builder setStringEventBytes(
-          com.google.protobuf.ByteString value) {
-        if (value == null) {
-    throw new NullPointerException();
-  }
-  bitField0_ |= 0x00000020;
-        stringEvent_ = value;
-        onChanged();
+      public Builder mergeEvent(com.openxc.BinaryMessages.DynamicField value) {
+        if (eventBuilder_ == null) {
+          if (((bitField0_ & 0x00000008) == 0x00000008) &&
+              event_ != com.openxc.BinaryMessages.DynamicField.getDefaultInstance()) {
+            event_ =
+              com.openxc.BinaryMessages.DynamicField.newBuilder(event_).mergeFrom(value).buildPartial();
+          } else {
+            event_ = value;
+          }
+          onChanged();
+        } else {
+          eventBuilder_.mergeFrom(value);
+        }
+        bitField0_ |= 0x00000008;
         return this;
       }
-
-      // optional double numeric_event = 7;
-      private double numericEvent_ ;
-      /**
-       * <code>optional double numeric_event = 7;</code>
-       */
-      public boolean hasNumericEvent() {
-        return ((bitField0_ & 0x00000040) == 0x00000040);
-      }
-      /**
-       * <code>optional double numeric_event = 7;</code>
-       */
-      public double getNumericEvent() {
-        return numericEvent_;
-      }
       /**
-       * <code>optional double numeric_event = 7;</code>
+       * <code>optional .openxc.DynamicField event = 4;</code>
        */
-      public Builder setNumericEvent(double value) {
-        bitField0_ |= 0x00000040;
-        numericEvent_ = value;
-        onChanged();
+      public Builder clearEvent() {
+        if (eventBuilder_ == null) {
+          event_ = com.openxc.BinaryMessages.DynamicField.getDefaultInstance();
+          onChanged();
+        } else {
+          eventBuilder_.clear();
+        }
+        bitField0_ = (bitField0_ & ~0x00000008);
         return this;
       }
       /**
-       * <code>optional double numeric_event = 7;</code>
+       * <code>optional .openxc.DynamicField event = 4;</code>
        */
-      public Builder clearNumericEvent() {
-        bitField0_ = (bitField0_ & ~0x00000040);
-        numericEvent_ = 0D;
+      public com.openxc.BinaryMessages.DynamicField.Builder getEventBuilder() {
+        bitField0_ |= 0x00000008;
         onChanged();
-        return this;
-      }
-
-      // optional bool boolean_event = 8;
-      private boolean booleanEvent_ ;
-      /**
-       * <code>optional bool boolean_event = 8;</code>
-       */
-      public boolean hasBooleanEvent() {
-        return ((bitField0_ & 0x00000080) == 0x00000080);
+        return getEventFieldBuilder().getBuilder();
       }
       /**
-       * <code>optional bool boolean_event = 8;</code>
+       * <code>optional .openxc.DynamicField event = 4;</code>
        */
-      public boolean getBooleanEvent() {
-        return booleanEvent_;
-      }
-      /**
-       * <code>optional bool boolean_event = 8;</code>
-       */
-      public Builder setBooleanEvent(boolean value) {
-        bitField0_ |= 0x00000080;
-        booleanEvent_ = value;
-        onChanged();
-        return this;
+      public com.openxc.BinaryMessages.DynamicFieldOrBuilder getEventOrBuilder() {
+        if (eventBuilder_ != null) {
+          return eventBuilder_.getMessageOrBuilder();
+        } else {
+          return event_;
+        }
       }
       /**
-       * <code>optional bool boolean_event = 8;</code>
+       * <code>optional .openxc.DynamicField event = 4;</code>
        */
-      public Builder clearBooleanEvent() {
-        bitField0_ = (bitField0_ & ~0x00000080);
-        booleanEvent_ = false;
-        onChanged();
-        return this;
+      private com.google.protobuf.SingleFieldBuilder<
+          com.openxc.BinaryMessages.DynamicField, com.openxc.BinaryMessages.DynamicField.Builder, com.openxc.BinaryMessages.DynamicFieldOrBuilder> 
+          getEventFieldBuilder() {
+        if (eventBuilder_ == null) {
+          eventBuilder_ = new com.google.protobuf.SingleFieldBuilder<
+              com.openxc.BinaryMessages.DynamicField, com.openxc.BinaryMessages.DynamicField.Builder, com.openxc.BinaryMessages.DynamicFieldOrBuilder>(
+                  event_,
+                  getParentForChildren(),
+                  isClean());
+          event_ = null;
+        }
+        return eventBuilder_;
       }
 
       // @@protoc_insertion_point(builder_scope:openxc.TranslatedMessage)
@@ -2763,6 +7439,31 @@ public final class BinaryMessages {
     com.google.protobuf.GeneratedMessage.FieldAccessorTable
       internal_static_openxc_RawMessage_fieldAccessorTable;
   private static com.google.protobuf.Descriptors.Descriptor
+    internal_static_openxc_ControlCommand_descriptor;
+  private static
+    com.google.protobuf.GeneratedMessage.FieldAccessorTable
+      internal_static_openxc_ControlCommand_fieldAccessorTable;
+  private static com.google.protobuf.Descriptors.Descriptor
+    internal_static_openxc_CommandResponse_descriptor;
+  private static
+    com.google.protobuf.GeneratedMessage.FieldAccessorTable
+      internal_static_openxc_CommandResponse_fieldAccessorTable;
+  private static com.google.protobuf.Descriptors.Descriptor
+    internal_static_openxc_DiagnosticRequest_descriptor;
+  private static
+    com.google.protobuf.GeneratedMessage.FieldAccessorTable
+      internal_static_openxc_DiagnosticRequest_fieldAccessorTable;
+  private static com.google.protobuf.Descriptors.Descriptor
+    internal_static_openxc_DiagnosticResponse_descriptor;
+  private static
+    com.google.protobuf.GeneratedMessage.FieldAccessorTable
+      internal_static_openxc_DiagnosticResponse_fieldAccessorTable;
+  private static com.google.protobuf.Descriptors.Descriptor
+    internal_static_openxc_DynamicField_descriptor;
+  private static
+    com.google.protobuf.GeneratedMessage.FieldAccessorTable
+      internal_static_openxc_DynamicField_fieldAccessorTable;
+  private static com.google.protobuf.Descriptors.Descriptor
     internal_static_openxc_TranslatedMessage_descriptor;
   private static
     com.google.protobuf.GeneratedMessage.FieldAccessorTable
@@ -2776,22 +7477,47 @@ public final class BinaryMessages {
       descriptor;
   static {
     java.lang.String[] descriptorData = {
-      "\n\014openxc.proto\022\006openxc\"\274\001\n\016VehicleMessag" +
+      "\n\014openxc.proto\022\006openxc\"\224\003\n\016VehicleMessag" +
       "e\022)\n\004type\030\001 \001(\0162\033.openxc.VehicleMessage." +
       "Type\022\'\n\013raw_message\030\002 \001(\0132\022.openxc.RawMe" +
       "ssage\0225\n\022translated_message\030\003 \001(\0132\031.open" +
-      "xc.TranslatedMessage\"\037\n\004Type\022\007\n\003RAW\020\001\022\016\n" +
-      "\nTRANSLATED\020\002\";\n\nRawMessage\022\013\n\003bus\030\001 \001(\005" +
-      "\022\022\n\nmessage_id\030\002 \001(\r\022\014\n\004data\030\003 \001(\004\"\265\002\n\021T" +
-      "ranslatedMessage\022,\n\004type\030\001 \001(\0162\036.openxc." +
-      "TranslatedMessage.Type\022\014\n\004name\030\002 \001(\t\022\024\n\014" +
-      "string_value\030\003 \001(\t\022\025\n\rnumeric_value\030\004 \001(",
-      "\001\022\025\n\rboolean_value\030\005 \001(\010\022\024\n\014string_event" +
-      "\030\006 \001(\t\022\025\n\rnumeric_event\030\007 \001(\001\022\025\n\rboolean" +
-      "_event\030\010 \001(\010\"\\\n\004Type\022\n\n\006STRING\020\001\022\007\n\003NUM\020" +
-      "\002\022\010\n\004BOOL\020\003\022\022\n\016EVENTED_STRING\020\004\022\017\n\013EVENT" +
-      "ED_NUM\020\005\022\020\n\014EVENTED_BOOL\020\006B\034\n\ncom.openxc" +
-      "B\016BinaryMessages"
+      "xc.TranslatedMessage\0227\n\023diagnostic_respo" +
+      "nse\030\004 \001(\0132\032.openxc.DiagnosticResponse\022/\n" +
+      "\017control_command\030\005 \001(\0132\026.openxc.ControlC" +
+      "ommand\0221\n\020command_response\030\006 \001(\0132\027.openx" +
+      "c.CommandResponse\"Z\n\004Type\022\007\n\003RAW\020\001\022\016\n\nTR" +
+      "ANSLATED\020\002\022\016\n\nDIAGNOSTIC\020\003\022\023\n\017CONTROL_CO",
+      "MMAND\020\004\022\024\n\020COMMAND_RESPONSE\020\005\";\n\nRawMess" +
+      "age\022\013\n\003bus\030\001 \001(\005\022\022\n\nmessage_id\030\002 \001(\r\022\014\n\004" +
+      "data\030\003 \001(\014\"\246\001\n\016ControlCommand\022)\n\004type\030\001 " +
+      "\001(\0162\033.openxc.ControlCommand.Type\0225\n\022diag" +
+      "nostic_request\030\002 \001(\0132\031.openxc.Diagnostic" +
+      "Request\"2\n\004Type\022\013\n\007VERSION\020\001\022\r\n\tDEVICE_I" +
+      "D\020\002\022\016\n\nDIAGNOSTIC\020\003\"M\n\017CommandResponse\022)" +
+      "\n\004type\030\001 \001(\0162\033.openxc.ControlCommand.Typ" +
+      "e\022\017\n\007message\030\002 \001(\t\"\375\001\n\021DiagnosticRequest" +
+      "\022\013\n\003bus\030\001 \001(\005\022\022\n\nmessage_id\030\002 \001(\r\022\014\n\004mod",
+      "e\030\003 \001(\r\022\013\n\003pid\030\004 \001(\r\022\017\n\007payload\030\005 \001(\014\022\032\n" +
+      "\022multiple_responses\030\006 \001(\010\022\021\n\tfrequency\030\007" +
+      " \001(\001\022\014\n\004name\030\010 \001(\t\022;\n\014decoded_type\030\t \001(\016" +
+      "2%.openxc.DiagnosticRequest.DecodedType\"" +
+      "!\n\013DecodedType\022\010\n\004NONE\020\001\022\010\n\004OBD2\020\002\"\241\001\n\022D" +
+      "iagnosticResponse\022\013\n\003bus\030\001 \001(\005\022\022\n\nmessag" +
+      "e_id\030\002 \001(\r\022\014\n\004mode\030\003 \001(\r\022\013\n\003pid\030\004 \001(\r\022\017\n" +
+      "\007success\030\005 \001(\010\022\036\n\026negative_response_code" +
+      "\030\006 \001(\r\022\017\n\007payload\030\007 \001(\014\022\r\n\005value\030\010 \001(\001\"\242" +
+      "\001\n\014DynamicField\022\'\n\004type\030\001 \001(\0162\031.openxc.D",
+      "ynamicField.Type\022\024\n\014string_value\030\002 \001(\t\022\025" +
+      "\n\rnumeric_value\030\003 \001(\001\022\025\n\rboolean_value\030\004" +
+      " \001(\010\"%\n\004Type\022\n\n\006STRING\020\001\022\007\n\003NUM\020\002\022\010\n\004BOO" +
+      "L\020\003\"\367\001\n\021TranslatedMessage\022,\n\004type\030\001 \001(\0162" +
+      "\036.openxc.TranslatedMessage.Type\022\014\n\004name\030" +
+      "\002 \001(\t\022#\n\005value\030\003 \001(\0132\024.openxc.DynamicFie" +
+      "ld\022#\n\005event\030\004 \001(\0132\024.openxc.DynamicField\"" +
+      "\\\n\004Type\022\n\n\006STRING\020\001\022\007\n\003NUM\020\002\022\010\n\004BOOL\020\003\022\022" +
+      "\n\016EVENTED_STRING\020\004\022\017\n\013EVENTED_NUM\020\005\022\020\n\014E" +
+      "VENTED_BOOL\020\006B\034\n\ncom.openxcB\016BinaryMessa",
+      "ges"
     };
     com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner assigner =
       new com.google.protobuf.Descriptors.FileDescriptor.InternalDescriptorAssigner() {
@@ -2803,19 +7529,49 @@ public final class BinaryMessages {
           internal_static_openxc_VehicleMessage_fieldAccessorTable = new
             com.google.protobuf.GeneratedMessage.FieldAccessorTable(
               internal_static_openxc_VehicleMessage_descriptor,
-              new java.lang.String[] { "Type", "RawMessage", "TranslatedMessage", });
+              new java.lang.String[] { "Type", "RawMessage", "TranslatedMessage", "DiagnosticResponse", "ControlCommand", "CommandResponse", });
           internal_static_openxc_RawMessage_descriptor =
             getDescriptor().getMessageTypes().get(1);
           internal_static_openxc_RawMessage_fieldAccessorTable = new
             com.google.protobuf.GeneratedMessage.FieldAccessorTable(
               internal_static_openxc_RawMessage_descriptor,
               new java.lang.String[] { "Bus", "MessageId", "Data", });
-          internal_static_openxc_TranslatedMessage_descriptor =
+          internal_static_openxc_ControlCommand_descriptor =
             getDescriptor().getMessageTypes().get(2);
+          internal_static_openxc_ControlCommand_fieldAccessorTable = new
+            com.google.protobuf.GeneratedMessage.FieldAccessorTable(
+              internal_static_openxc_ControlCommand_descriptor,
+              new java.lang.String[] { "Type", "DiagnosticRequest", });
+          internal_static_openxc_CommandResponse_descriptor =
+            getDescriptor().getMessageTypes().get(3);
+          internal_static_openxc_CommandResponse_fieldAccessorTable = new
+            com.google.protobuf.GeneratedMessage.FieldAccessorTable(
+              internal_static_openxc_CommandResponse_descriptor,
+              new java.lang.String[] { "Type", "Message", });
+          internal_static_openxc_DiagnosticRequest_descriptor =
+            getDescriptor().getMessageTypes().get(4);
+          internal_static_openxc_DiagnosticRequest_fieldAccessorTable = new
+            com.google.protobuf.GeneratedMessage.FieldAccessorTable(
+              internal_static_openxc_DiagnosticRequest_descriptor,
+              new java.lang.String[] { "Bus", "MessageId", "Mode", "Pid", "Payload", "MultipleResponses", "Frequency", "Name", "DecodedType", });
+          internal_static_openxc_DiagnosticResponse_descriptor =
+            getDescriptor().getMessageTypes().get(5);
+          internal_static_openxc_DiagnosticResponse_fieldAccessorTable = new
+            com.google.protobuf.GeneratedMessage.FieldAccessorTable(
+              internal_static_openxc_DiagnosticResponse_descriptor,
+              new java.lang.String[] { "Bus", "MessageId", "Mode", "Pid", "Success", "NegativeResponseCode", "Payload", "Value", });
+          internal_static_openxc_DynamicField_descriptor =
+            getDescriptor().getMessageTypes().get(6);
+          internal_static_openxc_DynamicField_fieldAccessorTable = new
+            com.google.protobuf.GeneratedMessage.FieldAccessorTable(
+              internal_static_openxc_DynamicField_descriptor,
+              new java.lang.String[] { "Type", "StringValue", "NumericValue", "BooleanValue", });
+          internal_static_openxc_TranslatedMessage_descriptor =
+            getDescriptor().getMessageTypes().get(7);
           internal_static_openxc_TranslatedMessage_fieldAccessorTable = new
             com.google.protobuf.GeneratedMessage.FieldAccessorTable(
               internal_static_openxc_TranslatedMessage_descriptor,
-              new java.lang.String[] { "Type", "Name", "StringValue", "NumericValue", "BooleanValue", "StringEvent", "NumericEvent", "BooleanEvent", });
+              new java.lang.String[] { "Type", "Name", "Value", "Event", });
           return null;
         }
       };
diff --git a/gen/openxc.pb b/gen/openxc.pb
deleted file mode 100644
index e343eeb0..00000000
--- a/gen/openxc.pb
+++ /dev/null
@@ -1,30 +0,0 @@
-
-Å
-openxc.protoopenxc"Å
-VehicleMessage)
-type
 
(2.openxc.VehicleMessage.Type'
-raw_message 
(2.openxc.RawMessage7
-string_message 
(2.openxc.TranslatedStringMessage;
-numerical_message 
(2 .openxc.TranslatedNumericMessage9
-boolean_message 
(2 .openxc.TranslatedBooleanMessage".
-Type
-RAW

-
-STRING
-NUM
-BOOL";
-
-RawMessage
-bus
 
(
-
-message_id 
(

-data 
("6
-TranslatedStringMessage
-name
 
(	

-value 
(	"7
-TranslatedNumericMessage
-name
 
(	

-value 
(
"7
-TranslatedBooleanMessage
-name
 
(	

-value 
(
\ No newline at end of file
diff --git a/gen/openxc.pb.c b/gen/openxc.pb.c
deleted file mode 100644
index 19473b4d..00000000
--- a/gen/openxc.pb.c
+++ /dev/null
@@ -1,57 +0,0 @@
-/* Automatically generated nanopb constant definitions */
-/* Generated by nanopb-0.2.4-dev at Tue Oct  1 16:50:34 2013. */
-
-#include "openxc.pb.h"
-
-
-
-const pb_field_t openxc_VehicleMessage_fields[6] = {
-    PB_FIELD2(  1, ENUM    , OPTIONAL, STATIC, FIRST, openxc_VehicleMessage, type, type, 0),
-    PB_FIELD2(  2, MESSAGE , OPTIONAL, STATIC, OTHER, openxc_VehicleMessage, raw_message, type, &openxc_RawMessage_fields),
-    PB_FIELD2(  3, MESSAGE , OPTIONAL, STATIC, OTHER, openxc_VehicleMessage, string_message, raw_message, &openxc_TranslatedStringMessage_fields),
-    PB_FIELD2(  4, MESSAGE , OPTIONAL, STATIC, OTHER, openxc_VehicleMessage, numerical_message, string_message, &openxc_TranslatedNumericMessage_fields),
-    PB_FIELD2(  5, MESSAGE , OPTIONAL, STATIC, OTHER, openxc_VehicleMessage, boolean_message, numerical_message, &openxc_TranslatedBooleanMessage_fields),
-    PB_LAST_FIELD
-};
-
-const pb_field_t openxc_RawMessage_fields[4] = {
-    PB_FIELD2(  1, INT32   , OPTIONAL, STATIC, FIRST, openxc_RawMessage, bus, bus, 0),
-    PB_FIELD2(  2, UINT32  , OPTIONAL, STATIC, OTHER, openxc_RawMessage, message_id, bus, 0),
-    PB_FIELD2(  3, SINT64  , OPTIONAL, STATIC, OTHER, openxc_RawMessage, data, message_id, 0),
-    PB_LAST_FIELD
-};
-
-const pb_field_t openxc_TranslatedStringMessage_fields[3] = {
-    PB_FIELD2(  1, STRING  , OPTIONAL, STATIC, FIRST, openxc_TranslatedStringMessage, name, name, 0),
-    PB_FIELD2(  2, STRING  , OPTIONAL, STATIC, OTHER, openxc_TranslatedStringMessage, value, name, 0),
-    PB_LAST_FIELD
-};
-
-const pb_field_t openxc_TranslatedNumericMessage_fields[3] = {
-    PB_FIELD2(  1, STRING  , OPTIONAL, STATIC, FIRST, openxc_TranslatedNumericMessage, name, name, 0),
-    PB_FIELD2(  2, DOUBLE  , OPTIONAL, STATIC, OTHER, openxc_TranslatedNumericMessage, value, name, 0),
-    PB_LAST_FIELD
-};
-
-const pb_field_t openxc_TranslatedBooleanMessage_fields[3] = {
-    PB_FIELD2(  1, STRING  , OPTIONAL, STATIC, FIRST, openxc_TranslatedBooleanMessage, name, name, 0),
-    PB_FIELD2(  2, BOOL    , OPTIONAL, STATIC, OTHER, openxc_TranslatedBooleanMessage, value, name, 0),
-    PB_LAST_FIELD
-};
-
-
-/* Check that field information fits in pb_field_t */
-#if !defined(PB_FIELD_16BIT) && !defined(PB_FIELD_32BIT)
-STATIC_ASSERT((pb_membersize(openxc_VehicleMessage, raw_message) < 256 && pb_membersize(openxc_VehicleMessage, string_message) < 256 && pb_membersize(openxc_VehicleMessage, numerical_message) < 256 && pb_membersize(openxc_VehicleMessage, boolean_message) < 256), YOU_MUST_DEFINE_PB_FIELD_16BIT_FOR_MESSAGES_openxc_VehicleMessage_openxc_RawMessage_openxc_TranslatedStringMessage_openxc_TranslatedNumericMessage_openxc_TranslatedBooleanMessage)
-#endif
-
-#if !defined(PB_FIELD_32BIT)
-STATIC_ASSERT((pb_membersize(openxc_VehicleMessage, raw_message) < 65536 && pb_membersize(openxc_VehicleMessage, string_message) < 65536 && pb_membersize(openxc_VehicleMessage, numerical_message) < 65536 && pb_membersize(openxc_VehicleMessage, boolean_message) < 65536), YOU_MUST_DEFINE_PB_FIELD_32BIT_FOR_MESSAGES_openxc_VehicleMessage_openxc_RawMessage_openxc_TranslatedStringMessage_openxc_TranslatedNumericMessage_openxc_TranslatedBooleanMessage)
-#endif
-
-/* On some platforms (such as AVR), double is really float.
- * These are not directly supported by nanopb, but see example_avr_double.
- * To get rid of this error, remove any double fields from your .proto.
- */
-STATIC_ASSERT(sizeof(double) == 8, DOUBLE_MUST_BE_8_BYTES)
-
diff --git a/gen/openxc.pb.h b/gen/openxc.pb.h
deleted file mode 100644
index 4923dcc0..00000000
--- a/gen/openxc.pb.h
+++ /dev/null
@@ -1,100 +0,0 @@
-/* Automatically generated nanopb header */
-/* Generated by nanopb-0.2.4-dev at Tue Oct  1 16:50:34 2013. */
-
-#ifndef _PB_OPENXC_PB_H_
-#define _PB_OPENXC_PB_H_
-#include <pb.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/* Enum definitions */
-typedef enum _openxc_VehicleMessage_Type {
-    openxc_VehicleMessage_Type_RAW = 1,
-    openxc_VehicleMessage_Type_STRING = 2,
-    openxc_VehicleMessage_Type_NUM = 3,
-    openxc_VehicleMessage_Type_BOOL = 4
-} openxc_VehicleMessage_Type;
-
-/* Struct definitions */
-typedef struct _openxc_RawMessage {
-    bool has_bus;
-    int32_t bus;
-    bool has_message_id;
-    uint32_t message_id;
-    bool has_data;
-    int64_t data;
-} openxc_RawMessage;
-
-typedef struct _openxc_TranslatedBooleanMessage {
-    bool has_name;
-    char name[100];
-    bool has_value;
-    bool value;
-} openxc_TranslatedBooleanMessage;
-
-typedef struct _openxc_TranslatedNumericMessage {
-    bool has_name;
-    char name[100];
-    bool has_value;
-    double value;
-} openxc_TranslatedNumericMessage;
-
-typedef struct _openxc_TranslatedStringMessage {
-    bool has_name;
-    char name[100];
-    bool has_value;
-    char value[100];
-} openxc_TranslatedStringMessage;
-
-typedef struct _openxc_VehicleMessage {
-    bool has_type;
-    openxc_VehicleMessage_Type type;
-    bool has_raw_message;
-    openxc_RawMessage raw_message;
-    bool has_string_message;
-    openxc_TranslatedStringMessage string_message;
-    bool has_numerical_message;
-    openxc_TranslatedNumericMessage numerical_message;
-    bool has_boolean_message;
-    openxc_TranslatedBooleanMessage boolean_message;
-} openxc_VehicleMessage;
-
-/* Default values for struct fields */
-
-/* Field tags (for use in manual encoding/decoding) */
-#define openxc_RawMessage_bus_tag                1
-#define openxc_RawMessage_message_id_tag         2
-#define openxc_RawMessage_data_tag               3
-#define openxc_TranslatedBooleanMessage_name_tag 1
-#define openxc_TranslatedBooleanMessage_value_tag 2
-#define openxc_TranslatedNumericMessage_name_tag 1
-#define openxc_TranslatedNumericMessage_value_tag 2
-#define openxc_TranslatedStringMessage_name_tag  1
-#define openxc_TranslatedStringMessage_value_tag 2
-#define openxc_VehicleMessage_type_tag           1
-#define openxc_VehicleMessage_raw_message_tag    2
-#define openxc_VehicleMessage_string_message_tag 3
-#define openxc_VehicleMessage_numerical_message_tag 4
-#define openxc_VehicleMessage_boolean_message_tag 5
-
-/* Struct field encoding specification for nanopb */
-extern const pb_field_t openxc_VehicleMessage_fields[6];
-extern const pb_field_t openxc_RawMessage_fields[4];
-extern const pb_field_t openxc_TranslatedStringMessage_fields[3];
-extern const pb_field_t openxc_TranslatedNumericMessage_fields[3];
-extern const pb_field_t openxc_TranslatedBooleanMessage_fields[3];
-
-/* Maximum encoded size of messages (where known) */
-#define openxc_VehicleMessage_size               457
-#define openxc_RawMessage_size                   23
-#define openxc_TranslatedStringMessage_size      204
-#define openxc_TranslatedNumericMessage_size     111
-#define openxc_TranslatedBooleanMessage_size     104
-
-#ifdef __cplusplus
-} /* extern "C" */
-#endif
-
-#endif
diff --git a/gen/openxc_pb2.py b/gen/openxc_pb2.py
deleted file mode 100644
index ad379eb3..00000000
--- a/gen/openxc_pb2.py
+++ /dev/null
@@ -1,296 +0,0 @@
-# Generated by the protocol buffer compiler.  DO NOT EDIT!
-# source: openxc.proto
-
-from google.protobuf import descriptor as _descriptor
-from google.protobuf import message as _message
-from google.protobuf import reflection as _reflection
-from google.protobuf import descriptor_pb2
-# @@protoc_insertion_point(imports)
-
-
-
-
-DESCRIPTOR = _descriptor.FileDescriptor(
-  name='openxc.proto',
-  package='openxc',
-  serialized_pb='\n\x0copenxc.proto\x12\x06openxc\"\xc5\x02\n\x0eVehicleMessage\x12)\n\x04type\x18\x01 \x01(\x0e\x32\x1b.openxc.VehicleMessage.Type\x12\'\n\x0braw_message\x18\x02 \x01(\x0b\x32\x12.openxc.RawMessage\x12\x37\n\x0estring_message\x18\x03 \x01(\x0b\x32\x1f.openxc.TranslatedStringMessage\x12;\n\x11numerical_message\x18\x04 \x01(\x0b\x32 .openxc.TranslatedNumericMessage\x12\x39\n\x0f\x62oolean_message\x18\x05 \x01(\x0b\x32 .openxc.TranslatedBooleanMessage\".\n\x04Type\x12\x07\n\x03RAW\x10\x01\x12\n\n\x06STRING\x10\x02\x12\x07\n\x03NUM\x10\x03\x12\x08\n\x04\x42OOL\x10\x04\";\n\nRawMessage\x12\x0b\n\x03\x62us\x18\x01 \x01(\x05\x12\x12\n\nmessage_id\x18\x02 \x01(\r\x12\x0c\n\x04\x64\x61ta\x18\x03 \x01(\x12\"6\n\x17TranslatedStringMessage\x12\x0c\n\x04name\x18\x01 \x01(\t\x12\r\n\x05value\x18\x02 \x01(\t\"7\n\x18TranslatedNumericMessage\x12\x0c\n\x04name\x18\x01 \x01(\t\x12\r\n\x05value\x18\x02 \x01(\x01\"7\n\x18TranslatedBooleanMessage\x12\x0c\n\x04name\x18\x01 \x01(\t\x12\r\n\x05value\x18\x02 \x01(\x08')
-
-
-
-_VEHICLEMESSAGE_TYPE = _descriptor.EnumDescriptor(
-  name='Type',
-  full_name='openxc.VehicleMessage.Type',
-  filename=None,
-  file=DESCRIPTOR,
-  values=[
-    _descriptor.EnumValueDescriptor(
-      name='RAW', index=0, number=1,
-      options=None,
-      type=None),
-    _descriptor.EnumValueDescriptor(
-      name='STRING', index=1, number=2,
-      options=None,
-      type=None),
-    _descriptor.EnumValueDescriptor(
-      name='NUM', index=2, number=3,
-      options=None,
-      type=None),
-    _descriptor.EnumValueDescriptor(
-      name='BOOL', index=3, number=4,
-      options=None,
-      type=None),
-  ],
-  containing_type=None,
-  options=None,
-  serialized_start=304,
-  serialized_end=350,
-)
-
-
-_VEHICLEMESSAGE = _descriptor.Descriptor(
-  name='VehicleMessage',
-  full_name='openxc.VehicleMessage',
-  filename=None,
-  file=DESCRIPTOR,
-  containing_type=None,
-  fields=[
-    _descriptor.FieldDescriptor(
-      name='type', full_name='openxc.VehicleMessage.type', index=0,
-      number=1, type=14, cpp_type=8, label=1,
-      has_default_value=False, default_value=1,
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-    _descriptor.FieldDescriptor(
-      name='raw_message', full_name='openxc.VehicleMessage.raw_message', index=1,
-      number=2, type=11, cpp_type=10, label=1,
-      has_default_value=False, default_value=None,
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-    _descriptor.FieldDescriptor(
-      name='string_message', full_name='openxc.VehicleMessage.string_message', index=2,
-      number=3, type=11, cpp_type=10, label=1,
-      has_default_value=False, default_value=None,
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-    _descriptor.FieldDescriptor(
-      name='numerical_message', full_name='openxc.VehicleMessage.numerical_message', index=3,
-      number=4, type=11, cpp_type=10, label=1,
-      has_default_value=False, default_value=None,
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-    _descriptor.FieldDescriptor(
-      name='boolean_message', full_name='openxc.VehicleMessage.boolean_message', index=4,
-      number=5, type=11, cpp_type=10, label=1,
-      has_default_value=False, default_value=None,
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-  ],
-  extensions=[
-  ],
-  nested_types=[],
-  enum_types=[
-    _VEHICLEMESSAGE_TYPE,
-  ],
-  options=None,
-  is_extendable=False,
-  extension_ranges=[],
-  serialized_start=25,
-  serialized_end=350,
-)
-
-
-_RAWMESSAGE = _descriptor.Descriptor(
-  name='RawMessage',
-  full_name='openxc.RawMessage',
-  filename=None,
-  file=DESCRIPTOR,
-  containing_type=None,
-  fields=[
-    _descriptor.FieldDescriptor(
-      name='bus', full_name='openxc.RawMessage.bus', index=0,
-      number=1, type=5, cpp_type=1, label=1,
-      has_default_value=False, default_value=0,
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-    _descriptor.FieldDescriptor(
-      name='message_id', full_name='openxc.RawMessage.message_id', index=1,
-      number=2, type=13, cpp_type=3, label=1,
-      has_default_value=False, default_value=0,
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-    _descriptor.FieldDescriptor(
-      name='data', full_name='openxc.RawMessage.data', index=2,
-      number=3, type=18, cpp_type=2, label=1,
-      has_default_value=False, default_value=0,
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-  ],
-  extensions=[
-  ],
-  nested_types=[],
-  enum_types=[
-  ],
-  options=None,
-  is_extendable=False,
-  extension_ranges=[],
-  serialized_start=352,
-  serialized_end=411,
-)
-
-
-_TRANSLATEDSTRINGMESSAGE = _descriptor.Descriptor(
-  name='TranslatedStringMessage',
-  full_name='openxc.TranslatedStringMessage',
-  filename=None,
-  file=DESCRIPTOR,
-  containing_type=None,
-  fields=[
-    _descriptor.FieldDescriptor(
-      name='name', full_name='openxc.TranslatedStringMessage.name', index=0,
-      number=1, type=9, cpp_type=9, label=1,
-      has_default_value=False, default_value=unicode("", "utf-8"),
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-    _descriptor.FieldDescriptor(
-      name='value', full_name='openxc.TranslatedStringMessage.value', index=1,
-      number=2, type=9, cpp_type=9, label=1,
-      has_default_value=False, default_value=unicode("", "utf-8"),
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-  ],
-  extensions=[
-  ],
-  nested_types=[],
-  enum_types=[
-  ],
-  options=None,
-  is_extendable=False,
-  extension_ranges=[],
-  serialized_start=413,
-  serialized_end=467,
-)
-
-
-_TRANSLATEDNUMERICMESSAGE = _descriptor.Descriptor(
-  name='TranslatedNumericMessage',
-  full_name='openxc.TranslatedNumericMessage',
-  filename=None,
-  file=DESCRIPTOR,
-  containing_type=None,
-  fields=[
-    _descriptor.FieldDescriptor(
-      name='name', full_name='openxc.TranslatedNumericMessage.name', index=0,
-      number=1, type=9, cpp_type=9, label=1,
-      has_default_value=False, default_value=unicode("", "utf-8"),
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-    _descriptor.FieldDescriptor(
-      name='value', full_name='openxc.TranslatedNumericMessage.value', index=1,
-      number=2, type=1, cpp_type=5, label=1,
-      has_default_value=False, default_value=0,
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-  ],
-  extensions=[
-  ],
-  nested_types=[],
-  enum_types=[
-  ],
-  options=None,
-  is_extendable=False,
-  extension_ranges=[],
-  serialized_start=469,
-  serialized_end=524,
-)
-
-
-_TRANSLATEDBOOLEANMESSAGE = _descriptor.Descriptor(
-  name='TranslatedBooleanMessage',
-  full_name='openxc.TranslatedBooleanMessage',
-  filename=None,
-  file=DESCRIPTOR,
-  containing_type=None,
-  fields=[
-    _descriptor.FieldDescriptor(
-      name='name', full_name='openxc.TranslatedBooleanMessage.name', index=0,
-      number=1, type=9, cpp_type=9, label=1,
-      has_default_value=False, default_value=unicode("", "utf-8"),
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-    _descriptor.FieldDescriptor(
-      name='value', full_name='openxc.TranslatedBooleanMessage.value', index=1,
-      number=2, type=8, cpp_type=7, label=1,
-      has_default_value=False, default_value=False,
-      message_type=None, enum_type=None, containing_type=None,
-      is_extension=False, extension_scope=None,
-      options=None),
-  ],
-  extensions=[
-  ],
-  nested_types=[],
-  enum_types=[
-  ],
-  options=None,
-  is_extendable=False,
-  extension_ranges=[],
-  serialized_start=526,
-  serialized_end=581,
-)
-
-_VEHICLEMESSAGE.fields_by_name['type'].enum_type = _VEHICLEMESSAGE_TYPE
-_VEHICLEMESSAGE.fields_by_name['raw_message'].message_type = _RAWMESSAGE
-_VEHICLEMESSAGE.fields_by_name['string_message'].message_type = _TRANSLATEDSTRINGMESSAGE
-_VEHICLEMESSAGE.fields_by_name['numerical_message'].message_type = _TRANSLATEDNUMERICMESSAGE
-_VEHICLEMESSAGE.fields_by_name['boolean_message'].message_type = _TRANSLATEDBOOLEANMESSAGE
-_VEHICLEMESSAGE_TYPE.containing_type = _VEHICLEMESSAGE;
-DESCRIPTOR.message_types_by_name['VehicleMessage'] = _VEHICLEMESSAGE
-DESCRIPTOR.message_types_by_name['RawMessage'] = _RAWMESSAGE
-DESCRIPTOR.message_types_by_name['TranslatedStringMessage'] = _TRANSLATEDSTRINGMESSAGE
-DESCRIPTOR.message_types_by_name['TranslatedNumericMessage'] = _TRANSLATEDNUMERICMESSAGE
-DESCRIPTOR.message_types_by_name['TranslatedBooleanMessage'] = _TRANSLATEDBOOLEANMESSAGE
-
-class VehicleMessage(_message.Message):
-  __metaclass__ = _reflection.GeneratedProtocolMessageType
-  DESCRIPTOR = _VEHICLEMESSAGE
-
-  # @@protoc_insertion_point(class_scope:openxc.VehicleMessage)
-
-class RawMessage(_message.Message):
-  __metaclass__ = _reflection.GeneratedProtocolMessageType
-  DESCRIPTOR = _RAWMESSAGE
-
-  # @@protoc_insertion_point(class_scope:openxc.RawMessage)
-
-class TranslatedStringMessage(_message.Message):
-  __metaclass__ = _reflection.GeneratedProtocolMessageType
-  DESCRIPTOR = _TRANSLATEDSTRINGMESSAGE
-
-  # @@protoc_insertion_point(class_scope:openxc.TranslatedStringMessage)
-
-class TranslatedNumericMessage(_message.Message):
-  __metaclass__ = _reflection.GeneratedProtocolMessageType
-  DESCRIPTOR = _TRANSLATEDNUMERICMESSAGE
-
-  # @@protoc_insertion_point(class_scope:openxc.TranslatedNumericMessage)
-
-class TranslatedBooleanMessage(_message.Message):
-  __metaclass__ = _reflection.GeneratedProtocolMessageType
-  DESCRIPTOR = _TRANSLATEDBOOLEANMESSAGE
-
-  # @@protoc_insertion_point(class_scope:openxc.TranslatedBooleanMessage)
-
-
-# @@protoc_insertion_point(module_scope)
diff --git a/gen/python/openxc_pb2.py b/gen/python/openxc_pb2.py
index 9ec8f26b..f8312303 100644
--- a/gen/python/openxc_pb2.py
+++ b/gen/python/openxc_pb2.py
@@ -13,7 +13,7 @@ from google.protobuf import descriptor_pb2
 DESCRIPTOR = _descriptor.FileDescriptor(
   name='openxc.proto',
   package='openxc',
-  serialized_pb='\n\x0copenxc.proto\x12\x06openxc\"\xbc\x01\n\x0eVehicleMessage\x12)\n\x04type\x18\x01 \x01(\x0e\x32\x1b.openxc.VehicleMessage.Type\x12\'\n\x0braw_message\x18\x02 \x01(\x0b\x32\x12.openxc.RawMessage\x12\x35\n\x12translated_message\x18\x03 \x01(\x0b\x32\x19.openxc.TranslatedMessage\"\x1f\n\x04Type\x12\x07\n\x03RAW\x10\x01\x12\x0e\n\nTRANSLATED\x10\x02\";\n\nRawMessage\x12\x0b\n\x03\x62us\x18\x01 \x01(\x05\x12\x12\n\nmessage_id\x18\x02 \x01(\r\x12\x0c\n\x04\x64\x61ta\x18\x03 \x01(\x04\"\xb5\x02\n\x11TranslatedMessage\x12,\n\x04type\x18\x01 \x01(\x0e\x32\x1e.openxc.TranslatedMessage.Type\x12\x0c\n\x04name\x18\x02 \x01(\t\x12\x14\n\x0cstring_value\x18\x03 \x01(\t\x12\x15\n\rnumeric_value\x18\x04 \x01(\x01\x12\x15\n\rboolean_value\x18\x05 \x01(\x08\x12\x14\n\x0cstring_event\x18\x06 \x01(\t\x12\x15\n\rnumeric_event\x18\x07 \x01(\x01\x12\x15\n\rboolean_event\x18\x08 \x01(\x08\"\\\n\x04Type\x12\n\n\x06STRING\x10\x01\x12\x07\n\x03NUM\x10\x02\x12\x08\n\x04\x42OOL\x10\x03\x12\x12\n\x0e\x45VENTED_STRING\x10\x04\x12\x0f\n\x0b\x45VENTED_NUM\x10\x05\x12\x10\n\x0c\x45VENTED_BOOL\x10\x06\x42\x1c\n\ncom.openxcB\x0e\x42inaryMessages')
+  serialized_pb='\n\x0copenxc.proto\x12\x06openxc\"\x94\x03\n\x0eVehicleMessage\x12)\n\x04type\x18\x01 \x01(\x0e\x32\x1b.openxc.VehicleMessage.Type\x12\'\n\x0braw_message\x18\x02 \x01(\x0b\x32\x12.openxc.RawMessage\x12\x35\n\x12translated_message\x18\x03 \x01(\x0b\x32\x19.openxc.TranslatedMessage\x12\x37\n\x13\x64iagnostic_response\x18\x04 \x01(\x0b\x32\x1a.openxc.DiagnosticResponse\x12/\n\x0f\x63ontrol_command\x18\x05 \x01(\x0b\x32\x16.openxc.ControlCommand\x12\x31\n\x10\x63ommand_response\x18\x06 \x01(\x0b\x32\x17.openxc.CommandResponse\"Z\n\x04Type\x12\x07\n\x03RAW\x10\x01\x12\x0e\n\nTRANSLATED\x10\x02\x12\x0e\n\nDIAGNOSTIC\x10\x03\x12\x13\n\x0f\x43ONTROL_COMMAND\x10\x04\x12\x14\n\x10\x43OMMAND_RESPONSE\x10\x05\";\n\nRawMessage\x12\x0b\n\x03\x62us\x18\x01 \x01(\x05\x12\x12\n\nmessage_id\x18\x02 \x01(\r\x12\x0c\n\x04\x64\x61ta\x18\x03 \x01(\x0c\"\xa6\x01\n\x0e\x43ontrolCommand\x12)\n\x04type\x18\x01 \x01(\x0e\x32\x1b.openxc.ControlCommand.Type\x12\x35\n\x12\x64iagnostic_request\x18\x02 \x01(\x0b\x32\x19.openxc.DiagnosticRequest\"2\n\x04Type\x12\x0b\n\x07VERSION\x10\x01\x12\r\n\tDEVICE_ID\x10\x02\x12\x0e\n\nDIAGNOSTIC\x10\x03\"M\n\x0f\x43ommandResponse\x12)\n\x04type\x18\x01 \x01(\x0e\x32\x1b.openxc.ControlCommand.Type\x12\x0f\n\x07message\x18\x02 \x01(\t\"\xfd\x01\n\x11\x44iagnosticRequest\x12\x0b\n\x03\x62us\x18\x01 \x01(\x05\x12\x12\n\nmessage_id\x18\x02 \x01(\r\x12\x0c\n\x04mode\x18\x03 \x01(\r\x12\x0b\n\x03pid\x18\x04 \x01(\r\x12\x0f\n\x07payload\x18\x05 \x01(\x0c\x12\x1a\n\x12multiple_responses\x18\x06 \x01(\x08\x12\x11\n\tfrequency\x18\x07 \x01(\x01\x12\x0c\n\x04name\x18\x08 \x01(\t\x12;\n\x0c\x64\x65\x63oded_type\x18\t \x01(\x0e\x32%.openxc.DiagnosticRequest.DecodedType\"!\n\x0b\x44\x65\x63odedType\x12\x08\n\x04NONE\x10\x01\x12\x08\n\x04OBD2\x10\x02\"\xa1\x01\n\x12\x44iagnosticResponse\x12\x0b\n\x03\x62us\x18\x01 \x01(\x05\x12\x12\n\nmessage_id\x18\x02 \x01(\r\x12\x0c\n\x04mode\x18\x03 \x01(\r\x12\x0b\n\x03pid\x18\x04 \x01(\r\x12\x0f\n\x07success\x18\x05 \x01(\x08\x12\x1e\n\x16negative_response_code\x18\x06 \x01(\r\x12\x0f\n\x07payload\x18\x07 \x01(\x0c\x12\r\n\x05value\x18\x08 \x01(\x01\"\xa2\x01\n\x0c\x44ynamicField\x12\'\n\x04type\x18\x01 \x01(\x0e\x32\x19.openxc.DynamicField.Type\x12\x14\n\x0cstring_value\x18\x02 \x01(\t\x12\x15\n\rnumeric_value\x18\x03 \x01(\x01\x12\x15\n\rboolean_value\x18\x04 \x01(\x08\"%\n\x04Type\x12\n\n\x06STRING\x10\x01\x12\x07\n\x03NUM\x10\x02\x12\x08\n\x04\x42OOL\x10\x03\"\xf7\x01\n\x11TranslatedMessage\x12,\n\x04type\x18\x01 \x01(\x0e\x32\x1e.openxc.TranslatedMessage.Type\x12\x0c\n\x04name\x18\x02 \x01(\t\x12#\n\x05value\x18\x03 \x01(\x0b\x32\x14.openxc.DynamicField\x12#\n\x05\x65vent\x18\x04 \x01(\x0b\x32\x14.openxc.DynamicField\"\\\n\x04Type\x12\n\n\x06STRING\x10\x01\x12\x07\n\x03NUM\x10\x02\x12\x08\n\x04\x42OOL\x10\x03\x12\x12\n\x0e\x45VENTED_STRING\x10\x04\x12\x0f\n\x0b\x45VENTED_NUM\x10\x05\x12\x10\n\x0c\x45VENTED_BOOL\x10\x06\x42\x1c\n\ncom.openxcB\x0e\x42inaryMessages')
 
 
 
@@ -31,11 +31,94 @@ _VEHICLEMESSAGE_TYPE = _descriptor.EnumDescriptor(
       name='TRANSLATED', index=1, number=2,
       options=None,
       type=None),
+    _descriptor.EnumValueDescriptor(
+      name='DIAGNOSTIC', index=2, number=3,
+      options=None,
+      type=None),
+    _descriptor.EnumValueDescriptor(
+      name='CONTROL_COMMAND', index=3, number=4,
+      options=None,
+      type=None),
+    _descriptor.EnumValueDescriptor(
+      name='COMMAND_RESPONSE', index=4, number=5,
+      options=None,
+      type=None),
+  ],
+  containing_type=None,
+  options=None,
+  serialized_start=339,
+  serialized_end=429,
+)
+
+_CONTROLCOMMAND_TYPE = _descriptor.EnumDescriptor(
+  name='Type',
+  full_name='openxc.ControlCommand.Type',
+  filename=None,
+  file=DESCRIPTOR,
+  values=[
+    _descriptor.EnumValueDescriptor(
+      name='VERSION', index=0, number=1,
+      options=None,
+      type=None),
+    _descriptor.EnumValueDescriptor(
+      name='DEVICE_ID', index=1, number=2,
+      options=None,
+      type=None),
+    _descriptor.EnumValueDescriptor(
+      name='DIAGNOSTIC', index=2, number=3,
+      options=None,
+      type=None),
   ],
   containing_type=None,
   options=None,
-  serialized_start=182,
-  serialized_end=213,
+  serialized_start=609,
+  serialized_end=659,
+)
+
+_DIAGNOSTICREQUEST_DECODEDTYPE = _descriptor.EnumDescriptor(
+  name='DecodedType',
+  full_name='openxc.DiagnosticRequest.DecodedType',
+  filename=None,
+  file=DESCRIPTOR,
+  values=[
+    _descriptor.EnumValueDescriptor(
+      name='NONE', index=0, number=1,
+      options=None,
+      type=None),
+    _descriptor.EnumValueDescriptor(
+      name='OBD2', index=1, number=2,
+      options=None,
+      type=None),
+  ],
+  containing_type=None,
+  options=None,
+  serialized_start=961,
+  serialized_end=994,
+)
+
+_DYNAMICFIELD_TYPE = _descriptor.EnumDescriptor(
+  name='Type',
+  full_name='openxc.DynamicField.Type',
+  filename=None,
+  file=DESCRIPTOR,
+  values=[
+    _descriptor.EnumValueDescriptor(
+      name='STRING', index=0, number=1,
+      options=None,
+      type=None),
+    _descriptor.EnumValueDescriptor(
+      name='NUM', index=1, number=2,
+      options=None,
+      type=None),
+    _descriptor.EnumValueDescriptor(
+      name='BOOL', index=2, number=3,
+      options=None,
+      type=None),
+  ],
+  containing_type=None,
+  options=None,
+  serialized_start=1286,
+  serialized_end=1323,
 )
 
 _TRANSLATEDMESSAGE_TYPE = _descriptor.EnumDescriptor(
@@ -71,8 +154,8 @@ _TRANSLATEDMESSAGE_TYPE = _descriptor.EnumDescriptor(
   ],
   containing_type=None,
   options=None,
-  serialized_start=494,
-  serialized_end=586,
+  serialized_start=1481,
+  serialized_end=1573,
 )
 
 
@@ -104,6 +187,27 @@ _VEHICLEMESSAGE = _descriptor.Descriptor(
       message_type=None, enum_type=None, containing_type=None,
       is_extension=False, extension_scope=None,
       options=None),
+    _descriptor.FieldDescriptor(
+      name='diagnostic_response', full_name='openxc.VehicleMessage.diagnostic_response', index=3,
+      number=4, type=11, cpp_type=10, label=1,
+      has_default_value=False, default_value=None,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='control_command', full_name='openxc.VehicleMessage.control_command', index=4,
+      number=5, type=11, cpp_type=10, label=1,
+      has_default_value=False, default_value=None,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='command_response', full_name='openxc.VehicleMessage.command_response', index=5,
+      number=6, type=11, cpp_type=10, label=1,
+      has_default_value=False, default_value=None,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
   ],
   extensions=[
   ],
@@ -115,7 +219,7 @@ _VEHICLEMESSAGE = _descriptor.Descriptor(
   is_extendable=False,
   extension_ranges=[],
   serialized_start=25,
-  serialized_end=213,
+  serialized_end=429,
 )
 
 
@@ -142,8 +246,8 @@ _RAWMESSAGE = _descriptor.Descriptor(
       options=None),
     _descriptor.FieldDescriptor(
       name='data', full_name='openxc.RawMessage.data', index=2,
-      number=3, type=4, cpp_type=4, label=1,
-      has_default_value=False, default_value=0,
+      number=3, type=12, cpp_type=9, label=1,
+      has_default_value=False, default_value="",
       message_type=None, enum_type=None, containing_type=None,
       is_extension=False, extension_scope=None,
       options=None),
@@ -156,70 +260,275 @@ _RAWMESSAGE = _descriptor.Descriptor(
   options=None,
   is_extendable=False,
   extension_ranges=[],
-  serialized_start=215,
-  serialized_end=274,
+  serialized_start=431,
+  serialized_end=490,
 )
 
 
-_TRANSLATEDMESSAGE = _descriptor.Descriptor(
-  name='TranslatedMessage',
-  full_name='openxc.TranslatedMessage',
+_CONTROLCOMMAND = _descriptor.Descriptor(
+  name='ControlCommand',
+  full_name='openxc.ControlCommand',
   filename=None,
   file=DESCRIPTOR,
   containing_type=None,
   fields=[
     _descriptor.FieldDescriptor(
-      name='type', full_name='openxc.TranslatedMessage.type', index=0,
+      name='type', full_name='openxc.ControlCommand.type', index=0,
       number=1, type=14, cpp_type=8, label=1,
       has_default_value=False, default_value=1,
       message_type=None, enum_type=None, containing_type=None,
       is_extension=False, extension_scope=None,
       options=None),
     _descriptor.FieldDescriptor(
-      name='name', full_name='openxc.TranslatedMessage.name', index=1,
+      name='diagnostic_request', full_name='openxc.ControlCommand.diagnostic_request', index=1,
+      number=2, type=11, cpp_type=10, label=1,
+      has_default_value=False, default_value=None,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+    _CONTROLCOMMAND_TYPE,
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  serialized_start=493,
+  serialized_end=659,
+)
+
+
+_COMMANDRESPONSE = _descriptor.Descriptor(
+  name='CommandResponse',
+  full_name='openxc.CommandResponse',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    _descriptor.FieldDescriptor(
+      name='type', full_name='openxc.CommandResponse.type', index=0,
+      number=1, type=14, cpp_type=8, label=1,
+      has_default_value=False, default_value=1,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='message', full_name='openxc.CommandResponse.message', index=1,
       number=2, type=9, cpp_type=9, label=1,
       has_default_value=False, default_value=unicode("", "utf-8"),
       message_type=None, enum_type=None, containing_type=None,
       is_extension=False, extension_scope=None,
       options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  serialized_start=661,
+  serialized_end=738,
+)
+
+
+_DIAGNOSTICREQUEST = _descriptor.Descriptor(
+  name='DiagnosticRequest',
+  full_name='openxc.DiagnosticRequest',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
     _descriptor.FieldDescriptor(
-      name='string_value', full_name='openxc.TranslatedMessage.string_value', index=2,
-      number=3, type=9, cpp_type=9, label=1,
+      name='bus', full_name='openxc.DiagnosticRequest.bus', index=0,
+      number=1, type=5, cpp_type=1, label=1,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='message_id', full_name='openxc.DiagnosticRequest.message_id', index=1,
+      number=2, type=13, cpp_type=3, label=1,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='mode', full_name='openxc.DiagnosticRequest.mode', index=2,
+      number=3, type=13, cpp_type=3, label=1,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='pid', full_name='openxc.DiagnosticRequest.pid', index=3,
+      number=4, type=13, cpp_type=3, label=1,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='payload', full_name='openxc.DiagnosticRequest.payload', index=4,
+      number=5, type=12, cpp_type=9, label=1,
+      has_default_value=False, default_value="",
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='multiple_responses', full_name='openxc.DiagnosticRequest.multiple_responses', index=5,
+      number=6, type=8, cpp_type=7, label=1,
+      has_default_value=False, default_value=False,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='frequency', full_name='openxc.DiagnosticRequest.frequency', index=6,
+      number=7, type=1, cpp_type=5, label=1,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='name', full_name='openxc.DiagnosticRequest.name', index=7,
+      number=8, type=9, cpp_type=9, label=1,
       has_default_value=False, default_value=unicode("", "utf-8"),
       message_type=None, enum_type=None, containing_type=None,
       is_extension=False, extension_scope=None,
       options=None),
     _descriptor.FieldDescriptor(
-      name='numeric_value', full_name='openxc.TranslatedMessage.numeric_value', index=3,
-      number=4, type=1, cpp_type=5, label=1,
+      name='decoded_type', full_name='openxc.DiagnosticRequest.decoded_type', index=8,
+      number=9, type=14, cpp_type=8, label=1,
+      has_default_value=False, default_value=1,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+    _DIAGNOSTICREQUEST_DECODEDTYPE,
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  serialized_start=741,
+  serialized_end=994,
+)
+
+
+_DIAGNOSTICRESPONSE = _descriptor.Descriptor(
+  name='DiagnosticResponse',
+  full_name='openxc.DiagnosticResponse',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    _descriptor.FieldDescriptor(
+      name='bus', full_name='openxc.DiagnosticResponse.bus', index=0,
+      number=1, type=5, cpp_type=1, label=1,
       has_default_value=False, default_value=0,
       message_type=None, enum_type=None, containing_type=None,
       is_extension=False, extension_scope=None,
       options=None),
     _descriptor.FieldDescriptor(
-      name='boolean_value', full_name='openxc.TranslatedMessage.boolean_value', index=4,
+      name='message_id', full_name='openxc.DiagnosticResponse.message_id', index=1,
+      number=2, type=13, cpp_type=3, label=1,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='mode', full_name='openxc.DiagnosticResponse.mode', index=2,
+      number=3, type=13, cpp_type=3, label=1,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='pid', full_name='openxc.DiagnosticResponse.pid', index=3,
+      number=4, type=13, cpp_type=3, label=1,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='success', full_name='openxc.DiagnosticResponse.success', index=4,
       number=5, type=8, cpp_type=7, label=1,
       has_default_value=False, default_value=False,
       message_type=None, enum_type=None, containing_type=None,
       is_extension=False, extension_scope=None,
       options=None),
     _descriptor.FieldDescriptor(
-      name='string_event', full_name='openxc.TranslatedMessage.string_event', index=5,
-      number=6, type=9, cpp_type=9, label=1,
+      name='negative_response_code', full_name='openxc.DiagnosticResponse.negative_response_code', index=5,
+      number=6, type=13, cpp_type=3, label=1,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='payload', full_name='openxc.DiagnosticResponse.payload', index=6,
+      number=7, type=12, cpp_type=9, label=1,
+      has_default_value=False, default_value="",
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='value', full_name='openxc.DiagnosticResponse.value', index=7,
+      number=8, type=1, cpp_type=5, label=1,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  serialized_start=997,
+  serialized_end=1158,
+)
+
+
+_DYNAMICFIELD = _descriptor.Descriptor(
+  name='DynamicField',
+  full_name='openxc.DynamicField',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    _descriptor.FieldDescriptor(
+      name='type', full_name='openxc.DynamicField.type', index=0,
+      number=1, type=14, cpp_type=8, label=1,
+      has_default_value=False, default_value=1,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='string_value', full_name='openxc.DynamicField.string_value', index=1,
+      number=2, type=9, cpp_type=9, label=1,
       has_default_value=False, default_value=unicode("", "utf-8"),
       message_type=None, enum_type=None, containing_type=None,
       is_extension=False, extension_scope=None,
       options=None),
     _descriptor.FieldDescriptor(
-      name='numeric_event', full_name='openxc.TranslatedMessage.numeric_event', index=6,
-      number=7, type=1, cpp_type=5, label=1,
+      name='numeric_value', full_name='openxc.DynamicField.numeric_value', index=2,
+      number=3, type=1, cpp_type=5, label=1,
       has_default_value=False, default_value=0,
       message_type=None, enum_type=None, containing_type=None,
       is_extension=False, extension_scope=None,
       options=None),
     _descriptor.FieldDescriptor(
-      name='boolean_event', full_name='openxc.TranslatedMessage.boolean_event', index=7,
-      number=8, type=8, cpp_type=7, label=1,
+      name='boolean_value', full_name='openxc.DynamicField.boolean_value', index=3,
+      number=4, type=8, cpp_type=7, label=1,
       has_default_value=False, default_value=False,
       message_type=None, enum_type=None, containing_type=None,
       is_extension=False, extension_scope=None,
@@ -229,23 +538,91 @@ _TRANSLATEDMESSAGE = _descriptor.Descriptor(
   ],
   nested_types=[],
   enum_types=[
+    _DYNAMICFIELD_TYPE,
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  serialized_start=1161,
+  serialized_end=1323,
+)
+
+
+_TRANSLATEDMESSAGE = _descriptor.Descriptor(
+  name='TranslatedMessage',
+  full_name='openxc.TranslatedMessage',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    _descriptor.FieldDescriptor(
+      name='type', full_name='openxc.TranslatedMessage.type', index=0,
+      number=1, type=14, cpp_type=8, label=1,
+      has_default_value=False, default_value=1,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='name', full_name='openxc.TranslatedMessage.name', index=1,
+      number=2, type=9, cpp_type=9, label=1,
+      has_default_value=False, default_value=unicode("", "utf-8"),
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='value', full_name='openxc.TranslatedMessage.value', index=2,
+      number=3, type=11, cpp_type=10, label=1,
+      has_default_value=False, default_value=None,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='event', full_name='openxc.TranslatedMessage.event', index=3,
+      number=4, type=11, cpp_type=10, label=1,
+      has_default_value=False, default_value=None,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
     _TRANSLATEDMESSAGE_TYPE,
   ],
   options=None,
   is_extendable=False,
   extension_ranges=[],
-  serialized_start=277,
-  serialized_end=586,
+  serialized_start=1326,
+  serialized_end=1573,
 )
 
 _VEHICLEMESSAGE.fields_by_name['type'].enum_type = _VEHICLEMESSAGE_TYPE
 _VEHICLEMESSAGE.fields_by_name['raw_message'].message_type = _RAWMESSAGE
 _VEHICLEMESSAGE.fields_by_name['translated_message'].message_type = _TRANSLATEDMESSAGE
+_VEHICLEMESSAGE.fields_by_name['diagnostic_response'].message_type = _DIAGNOSTICRESPONSE
+_VEHICLEMESSAGE.fields_by_name['control_command'].message_type = _CONTROLCOMMAND
+_VEHICLEMESSAGE.fields_by_name['command_response'].message_type = _COMMANDRESPONSE
 _VEHICLEMESSAGE_TYPE.containing_type = _VEHICLEMESSAGE;
+_CONTROLCOMMAND.fields_by_name['type'].enum_type = _CONTROLCOMMAND_TYPE
+_CONTROLCOMMAND.fields_by_name['diagnostic_request'].message_type = _DIAGNOSTICREQUEST
+_CONTROLCOMMAND_TYPE.containing_type = _CONTROLCOMMAND;
+_COMMANDRESPONSE.fields_by_name['type'].enum_type = _CONTROLCOMMAND_TYPE
+_DIAGNOSTICREQUEST.fields_by_name['decoded_type'].enum_type = _DIAGNOSTICREQUEST_DECODEDTYPE
+_DIAGNOSTICREQUEST_DECODEDTYPE.containing_type = _DIAGNOSTICREQUEST;
+_DYNAMICFIELD.fields_by_name['type'].enum_type = _DYNAMICFIELD_TYPE
+_DYNAMICFIELD_TYPE.containing_type = _DYNAMICFIELD;
 _TRANSLATEDMESSAGE.fields_by_name['type'].enum_type = _TRANSLATEDMESSAGE_TYPE
+_TRANSLATEDMESSAGE.fields_by_name['value'].message_type = _DYNAMICFIELD
+_TRANSLATEDMESSAGE.fields_by_name['event'].message_type = _DYNAMICFIELD
 _TRANSLATEDMESSAGE_TYPE.containing_type = _TRANSLATEDMESSAGE;
 DESCRIPTOR.message_types_by_name['VehicleMessage'] = _VEHICLEMESSAGE
 DESCRIPTOR.message_types_by_name['RawMessage'] = _RAWMESSAGE
+DESCRIPTOR.message_types_by_name['ControlCommand'] = _CONTROLCOMMAND
+DESCRIPTOR.message_types_by_name['CommandResponse'] = _COMMANDRESPONSE
+DESCRIPTOR.message_types_by_name['DiagnosticRequest'] = _DIAGNOSTICREQUEST
+DESCRIPTOR.message_types_by_name['DiagnosticResponse'] = _DIAGNOSTICRESPONSE
+DESCRIPTOR.message_types_by_name['DynamicField'] = _DYNAMICFIELD
 DESCRIPTOR.message_types_by_name['TranslatedMessage'] = _TRANSLATEDMESSAGE
 
 class VehicleMessage(_message.Message):
@@ -260,6 +637,36 @@ class RawMessage(_message.Message):
 
   # @@protoc_insertion_point(class_scope:openxc.RawMessage)
 
+class ControlCommand(_message.Message):
+  __metaclass__ = _reflection.GeneratedProtocolMessageType
+  DESCRIPTOR = _CONTROLCOMMAND
+
+  # @@protoc_insertion_point(class_scope:openxc.ControlCommand)
+
+class CommandResponse(_message.Message):
+  __metaclass__ = _reflection.GeneratedProtocolMessageType
+  DESCRIPTOR = _COMMANDRESPONSE
+
+  # @@protoc_insertion_point(class_scope:openxc.CommandResponse)
+
+class DiagnosticRequest(_message.Message):
+  __metaclass__ = _reflection.GeneratedProtocolMessageType
+  DESCRIPTOR = _DIAGNOSTICREQUEST
+
+  # @@protoc_insertion_point(class_scope:openxc.DiagnosticRequest)
+
+class DiagnosticResponse(_message.Message):
+  __metaclass__ = _reflection.GeneratedProtocolMessageType
+  DESCRIPTOR = _DIAGNOSTICRESPONSE
+
+  # @@protoc_insertion_point(class_scope:openxc.DiagnosticResponse)
+
+class DynamicField(_message.Message):
+  __metaclass__ = _reflection.GeneratedProtocolMessageType
+  DESCRIPTOR = _DYNAMICFIELD
+
+  # @@protoc_insertion_point(class_scope:openxc.DynamicField)
+
 class TranslatedMessage(_message.Message):
   __metaclass__ = _reflection.GeneratedProtocolMessageType
   DESCRIPTOR = _TRANSLATEDMESSAGE
diff --git a/libs/nanopb b/libs/nanopb
-Subproject 388d4de833cf4e2127b2ab0489cb6b14ecc0cbb
+Subproject 906c8283b5995eb7b27f4958a6a6502ae0deea0
diff --git a/openxc.options b/openxc.options
index 1863c0d3..80d0f9b0 100644
--- a/openxc.options
+++ b/openxc.options
@@ -1,2 +1,7 @@
-# TODO this isn't working yet, so I'm defining it for everything in the Makefile
-openxc_TranslatedMessage.name max_size:100
+openxc.TranslatedMessage.name max_size:100
+openxc.DynamicField.string_value max_size:100
+openxc.CommandResponse.message max_size:128
+openxc.DiagnosticResponse.payload max_size:8
+openxc.DiagnosticRequest.name max_size:10
+openxc.DiagnosticRequest.payload max_size:8
+openxc.RawMessage.data max_size:8
diff --git a/openxc.proto b/openxc.proto
index 6b79c36f..5b7e78b4 100644
--- a/openxc.proto
+++ b/openxc.proto
@@ -4,17 +4,71 @@ option java_package = "com.openxc";
 option java_outer_classname = "BinaryMessages";
 
 message VehicleMessage {
-    enum Type { RAW = 1; TRANSLATED = 2; }
+    enum Type { RAW = 1; TRANSLATED = 2; DIAGNOSTIC = 3; CONTROL_COMMAND = 4;
+            COMMAND_RESPONSE = 5; }
 
     optional Type type = 1;
     optional RawMessage raw_message = 2;
     optional TranslatedMessage translated_message = 3;
+    optional DiagnosticResponse diagnostic_response = 4;
+    optional ControlCommand control_command = 5;
+    optional CommandResponse command_response = 6;
 }
 
 message RawMessage {
     optional int32 bus = 1;
     optional uint32 message_id = 2;
-    optional uint64 data = 3;
+    optional bytes data = 3;
+}
+
+message ControlCommand {
+    enum Type { VERSION = 1; DEVICE_ID = 2; DIAGNOSTIC = 3; }
+
+    optional Type type = 1;
+    optional DiagnosticRequest diagnostic_request = 2;
+}
+
+message CommandResponse {
+    optional ControlCommand.Type type = 1;
+    optional string message = 2;
+}
+
+message DiagnosticRequest {
+    enum DecodedType { NONE = 1; OBD2 = 2; }
+
+    optional int32 bus = 1;
+    optional uint32 message_id = 2;
+    optional uint32 mode = 3;
+    optional uint32 pid = 4;
+    // TODO we are capping this at 8 bytes for now - need to change when we
+    // support multi-frame responses
+    optional bytes payload = 5;
+    optional bool multiple_responses = 6;
+    optional double frequency = 7;
+    optional string name = 8;
+    optional DecodedType decoded_type = 9;
+}
+
+message DiagnosticResponse {
+    optional int32 bus = 1;
+    optional uint32 message_id = 2;
+    optional uint32 mode = 3;
+    optional uint32 pid = 4;
+    optional bool success = 5;
+    optional uint32 negative_response_code = 6;
+    // TODO we are capping this at 8 bytes for now - need to change when we
+    // support multi-frame responses
+    optional bytes payload = 7;
+    optional double value = 8;
+}
+
+message DynamicField {
+    enum Type { STRING = 1; NUM = 2; BOOL = 3; }
+
+    optional Type type = 1;
+    optional string string_value = 2;
+    optional double numeric_value = 3;
+    optional bool boolean_value = 4;
 }
 
 message TranslatedMessage {
@@ -23,14 +77,8 @@ message TranslatedMessage {
 
     optional Type type = 1;
     optional string name = 2;
-
-    optional string string_value = 3;
-    optional double numeric_value = 4;
-    optional bool boolean_value = 5;
-
-    optional string string_event = 6;
-    optional double numeric_event = 7;
-    optional bool boolean_event = 8;
+    optional DynamicField value = 3;
+    optional DynamicField event = 4;
 }
 
 // TODO we should also consider having an enum type, having each specific