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diff --git a/src/ahl-binding.h b/src/ahl-binding.h
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+/*
+ * Copyright (C) 2017 "Audiokinetic Inc"
+ * Author Francois Thibault <fthibault@audiokinetic.com>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#ifndef AHL_BINDING_INCLUDE
+#define AHL_BINDING_INCLUDE
+
+#define AFB_BINDING_VERSION 2
+#include <afb/afb-binding.h>
+#include <json-c/json.h>
+
+#ifndef PUBLIC
+  #define PUBLIC
+#endif
+
+#define UNDEFINED_ID -1
+
+typedef int endpointID_t;
+typedef int streamID_t;
+typedef int routingID_t;
+
+typedef enum EndpointType {
+    ENDPOINTTYPE_SOURCE = 0,    // source devices
+    ENDPOINTTYPE_SINK,          // sink devices
+    ENDPOINTTYPE_MAXVALUE       // Enum count, keep at the end
+} EndpointTypeT;
+
+typedef enum AudioRole {
+    AUDIOROLE_WARNING = 0,      // Safety-relevant or critical alerts/alarms
+    AUDIOROLE_GUIDANCE,         // Important user information where user action is expected (e.g. navigation instruction) 
+    AUDIOROLE_NOTIFICATION,     // HMI or else notifications (e.g. touchscreen events, speech recognition on/off,...)
+    AUDIOROLE_COMMUNICATIONS,   // Voice communications (e.g. handsfree, speech recognition)
+    AUDIOROLE_ENTERTAINMENT,    // Multimedia content (e.g. tuner, media player, etc.)
+    AUDIOROLE_SYSTEM,           // System level content
+    AUDIOROLE_DEFAULT,          // No specific audio role (legacy applications)
+    AUDIOROLE_MAXVALUE          // Enum count, keep at the end
+} AudioRoleT;
+
+typedef enum AudioDeviceClass {
+    AUDIODEVICE_SPEAKERMAIN = 0,
+    AUDIODEVICE_SPEAKERHEADREST,
+    AUDIODEVICE_HEADSET,
+    AUDIODEVICE_HEADPHONE,
+    AUDIODEVICE_LINEOUT,
+    AUDIODEVICE_LINEIN,
+    AUDIODEVICE_BLUETOOTH,
+    AUDIODEVICE_HANDSET,
+    AUDIODEVICE_HDMI,
+    AUDIODEVICE_USB,
+    AUDIODEVICE_TONES,
+    AUDIODEVICE_VOICE,
+    AUDIODEVICE_PHONELINK,
+    AUDIODEVICE_DEFAULT,
+    AUDIODEVICE_MAXVALUE // Enum count, keep at the end
+} AudioDeviceClassT;
+
+typedef struct EndpointInfo
+{
+    endpointID_t    endpoint_id;
+    EndpointTypeT   type;
+    char *          name;
+    // TODO: Consider adding associated device class
+} EndpointInfoT;
+
+typedef struct StreamInfo {
+    streamID_t      stream_id;
+    char *          pcm_name;
+    EndpointInfoT   endpoint_info;
+} StreamInfoT;
+
+typedef struct RoutingInfo {
+    routingID_t     routing_id;
+    endpointID_t    source_id;
+    endpointID_t    sink_id;
+} RoutingInfoT;
+
+PUBLIC int AhlBindingInit();
+// ahl-deviceenum.c
+PUBLIC int  EnumerateSources();
+PUBLIC int  EnumerateSinks();
+
+#endif