Index: firmware/App/Services/MsgQueues.h
===================================================================
diff -u -rde5a0d43bdef611d963d11855bc958a8d8899a09 -r8dad6fab1c33602ad94908fd31b8b15153a9eb6e
--- firmware/App/Services/MsgQueues.h	(.../MsgQueues.h)	(revision de5a0d43bdef611d963d11855bc958a8d8899a09)
+++ firmware/App/Services/MsgQueues.h	(.../MsgQueues.h)	(revision 8dad6fab1c33602ad94908fd31b8b15153a9eb6e)
@@ -20,38 +20,52 @@
 
 #include "HDCommon.h"
 
+/**
+ *  @defgroup MsgQueues MsgQueues
+ *  @brief The message queues module provides queuing services for
+ *  incoming CAN messages.
+ *
+ *  @addtogroup MsgQueues
+ *  @{
+ */
+
 // ********** public definitions **********
 
-#define MAX_MSG_PAYLOAD_SIZE          100         // bytes
-
+#define MAX_MSG_PAYLOAD_SIZE          100               ///< bytes
+
+/// Enumeration of message queues.
 typedef enum Msg_Queues
 {
-    MSG_Q_IN = 0,
-    NUM_OF_MSG_QUEUES
+    MSG_Q_IN = 0,                                       ///< Incoming CAN message queue.
+    NUM_OF_MSG_QUEUES                                   ///< Number of message queues.
 } MSG_QUEUE_T;
 
-#pragma pack(push,1)
+#pragma pack(push,1)
+
+/// Record structure for message header.
 typedef struct
 {
-    S16 seqNo;                                  // sequence # (and ACK required bit) of message
-    U16 msgID;                                  // ID of message
-    U08 payloadLen;                             // length of payload in bytes
+    S16 seqNo;                                          ///< sequence number (and ACK required bit) of message
+    U16 msgID;                                          ///< ID of message
+    U08 payloadLen;                                     ///< length of payload in bytes
 } MESSAGE_HEADER_T;
-
+
+/// Record structure for a message (header + payload).
 typedef struct
 {
-    MESSAGE_HEADER_T hdr;                       // message header
-    U08              payload[ MAX_MSG_PAYLOAD_SIZE ]; // message payload
+    MESSAGE_HEADER_T hdr;                               ///< message header
+    U08              payload[ MAX_MSG_PAYLOAD_SIZE ];   ///< message payload
 } MESSAGE_T;
-
+
+/// Record structure for a wrapped message (message + CRC).
 typedef struct
 {
-    MESSAGE_T        msg;                       // message
-    U08              crc;                       // message CRC
+    MESSAGE_T        msg;                               ///< message
+    U08              crc;                               ///< message CRC
 } MESSAGE_WRAPPER_T;
 #pragma pack(pop)
 
-#define MESSAGE_OVERHEAD_SIZE   (sizeof(MESSAGE_HEADER_T) + sizeof(U08))
+#define MESSAGE_OVERHEAD_SIZE   (sizeof(MESSAGE_HEADER_T) + sizeof(U08))            ///< Byte size of a message's overhead (fixed at 6 bytes).
 
 // ********** public function prototypes **********
 
@@ -63,4 +77,6 @@
 void blankMessage( MESSAGE_T *message );
 void blankMessageInWrapper( MESSAGE_WRAPPER_T *message );
 
+/**@}*/
+
 #endif