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diff --git a/can-signals.h b/can-signals.h
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+/*
+ * Copyright (C) 2015, 2016 "IoT.bzh"
+ * Author "Romain Forlot" <romain.forlot@iot.bzh>
+ *
+ * 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.
+ */
+
+#pragma once
+
+#include "can-utils.h"
+
+/** Public: Return the currently active CAN configuration. */
+CanMessageSet* getActiveMessageSet();
+
+/** Public: Retrive a list of all possible CAN configurations.
+ *  *
+ *   * Returns a pointer to an array of all configurations.
+ *    */
+CanMessageSet* getMessageSets();
+
+/** Public: Return the length of the array returned by getMessageSets() */
+int getMessageSetCount();
+
+/* Public: Return the number of CAN buses configured in the active
+ *  * configuration. This is limited to 2, as the hardware controller only has 2
+ *   * CAN channels.
+ *    */
+int getCanBusCount();
+
+/* Public: Return an array of all CAN messages to be processed in the active
+ *  * configuration.
+ *   */
+CanMessageDefinition* getMessages();
+
+/* Public: Return an array of all CAN signals to be processed in the active
+ *  * configuration.
+ *   */
+CanSignal* getSignals();
+
+/* Public: Return an array of all OpenXC CAN commands enabled in the active
+ *  * configuration that can write back to CAN with a custom handler.
+ *   *
+ *    * Commands not defined here are handled using a 1-1 mapping from the signals
+ *     * list.
+ *      */
+CanCommand* getCommands();
+
+/* Public: Return the length of the array returned by getCommandCount(). */
+int getCommandCount();
+
+/* Public: Return the length of the array returned by getSignals(). */
+int getSignalCount();
+
+/* Public: Return the length of the array returned by getMessages(). */
+int getMessageCount();
+
+/* Public: Return an array of the metadata for the 2 CAN buses you want to
+ *  * monitor. The size of this array is fixed at 2.
+ *   */
+CanBus* getCanBuses();
+
+/* Public: Decode CAN signals from raw CAN messages, translate from engineering
+ *  * units to something more human readable, and send the resulting value over USB
+ *   * as an OpenXC-style JSON message.
+ *    *
+ *     * This is the main workhorse function of the VI. Every time a new
+ *      * CAN message is received that matches one of the signals in the list returend
+ *       * by getSignals(), this function is called with the message ID and 64-bit data
+ *        * field.
+ *         *
+ *          * bus - The CAN bus this message was received on.
+ *           * message - The received CAN message.
+ *            */
+void decodeCanMessage(openxc::pipeline::Pipeline* pipeline, CanBus* bus, CanMessage* message);
+