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diff --git a/low-can-binding/can/can-command.hpp b/low-can-binding/can/can-command.hpp
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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 "openxc.pb.h"
+#include "can-signals.hpp"
+
+///
+/// @brief The type signature for a function to handle a custom OpenXC command.
+///
+/// @param[in] name - the name of the received command.
+/// @param[in] value - the value of the received command, in a DynamicField. The actual type
+///		may be a number, string or bool.
+/// @param[in] event - an optional event from the received command, in a DynamicField. The
+///		actual type may be a number, string or bool.
+/// @param[in] signals - The list of all signals.
+/// @param[in] signalCount - The length of the signals array.
+///
+typedef void (*CommandHandler)(const char* name, openxc_DynamicField* value,
+		openxc_DynamicField* event, can_signal_t* signals, int signalCount);
+
+/// @struct CanCommand
+/// @brief The structure to represent a supported custom OpenXC command.
+///
+/// For completely customized CAN commands without a 1-1 mapping between an
+/// OpenXC message from the host and a CAN signal, you can define the name of the
+/// command and a custom function to handle it in the VI. An example is
+/// the "turn_signal_status" command in OpenXC, which has a value of "left" or
+/// "right". The vehicle may have separate CAN signals for the left and right
+/// turn signals, so you will need to implement a custom command handler to send
+/// the correct signals.
+///
+/// Command handlers are also useful if you want to trigger multiple CAN messages
+/// or signals from a signal OpenXC message.
+///
+typedef struct {
+	const char* generic_name; /*!< generic_name - The name of the command.*/
+	CommandHandler handler; /*!< handler - An function to process the received command's data and perform some
+ 							 *	action.*/
+} CanCommand;