Index: firmware/App/Services/CommBuffers.h
===================================================================
diff -u -rdc0d9b087c609e71cacdb7f0395cccf29d749c00 -r5e0cd9b5be11ff4b2acaadbdcafc4ffe05172aa1
--- firmware/App/Services/CommBuffers.h	(.../CommBuffers.h)	(revision dc0d9b087c609e71cacdb7f0395cccf29d749c00)
+++ firmware/App/Services/CommBuffers.h	(.../CommBuffers.h)	(revision 5e0cd9b5be11ff4b2acaadbdcafc4ffe05172aa1)
@@ -19,29 +19,39 @@
 #define __COMM_BUFFERS_H__
 
 #include "DGCommon.h"
+
+/**
+ *  @defgroup CommBuffers CommBuffers
+ *  @brief Communication buffers service module. Provides communication buffers functionality
+ *  including support functions for adding and clearing communication buffer.
+ *
+ *  @addtogroup CommBuffers
+ *  @{
+ */
 
-// ********** public definitions **********
-
+// ********** public definitions **********
+
+/// List of comm buffers.
 typedef enum Comm_Buffers
 {
-    COMM_BUFFER_NOT_USED = 0,           // CAN message boxes start at 1
-    COMM_BUFFER_IN_CAN_HD_ALARM,
-    COMM_BUFFER_OUT_CAN_DG_ALARM,
-    COMM_BUFFER_IN_CAN_UI_ALARM,
-    COMM_BUFFER_IN_CAN_HD_2_DG,
-    COMM_BUFFER_OUT_CAN_DG_2_HD,
-    COMM_BUFFER_IN_CAN_HD_BROADCAST,
-    COMM_BUFFER_OUT_CAN_DG_BROADCAST,
-    COMM_BUFFER_IN_CAN_UI_BROADCAST,
-    COMM_BUFFER_IN_CAN_PC,
-    COMM_BUFFER_OUT_CAN_PC,
-    COMM_BUFFER_OUT_CAN_DG_2_UI,
-    COMM_BUFFER_LAST_CAN_BUFFER = COMM_BUFFER_OUT_CAN_DG_2_UI,
+    COMM_BUFFER_NOT_USED = 0,                                   ///< Unused buffer - CAN message boxes start at 1
+    COMM_BUFFER_IN_CAN_HD_ALARM,                                ///< Receiving buffer for HD alarm via CAN
+    COMM_BUFFER_OUT_CAN_DG_ALARM,                               ///< Transmitting buffer for DG alarm via CAN
+    COMM_BUFFER_IN_CAN_UI_ALARM,                                ///< Receiving buffer for UI alarm via CAN
+    COMM_BUFFER_IN_CAN_HD_2_DG,                                 ///< Receiving buffer for HD to DG communication via CAN
+    COMM_BUFFER_OUT_CAN_DG_2_HD,                                ///< Transmitting buffer for DG to HD communication via CAN
+    COMM_BUFFER_IN_CAN_HD_BROADCAST,                            ///< Receiving buffer for HD broadcast communication via CAN
+    COMM_BUFFER_OUT_CAN_DG_BROADCAST,                           ///< Transmitting buffer for DG broadcast communication via CAN
+    COMM_BUFFER_IN_CAN_UI_BROADCAST,                            ///< Receiving buffer for UI broadcast communication via CAN
+    COMM_BUFFER_IN_CAN_PC,                                      ///< Receiving buffer for PC communication via CAN
+    COMM_BUFFER_OUT_CAN_PC,                                     ///< Transmitting buffer for PC communication via CAN
+    COMM_BUFFER_OUT_CAN_DG_2_UI,                                ///< Transmitting buffer for DG to UI communication via CAN
+    COMM_BUFFER_LAST_CAN_BUFFER = COMM_BUFFER_OUT_CAN_DG_2_UI,  ///< Last CAN communication buffer
 #ifdef DEBUG_ENABLED
-    COMM_BUFFER_IN_UART_PC,
-    COMM_BUFFER_OUT_UART_PC,
+    COMM_BUFFER_IN_UART_PC,                                     ///< Receiving buffer for PC communication via UART
+    COMM_BUFFER_OUT_UART_PC,                                    ///< Transmitting buffer for PC communication via UART
 #endif
-    NUM_OF_COMM_BUFFERS
+    NUM_OF_COMM_BUFFERS                                         ///< The number of communication buffers
 } COMM_BUFFER_T;
 
 // ********** public function prototypes **********
@@ -52,5 +62,7 @@
 U32 getFromCommBuffer( COMM_BUFFER_T buffer, U08 *data, U32 len );
 U32 peekFromCommBuffer( COMM_BUFFER_T buffer, U08 *data, U32 len );
 U32 numberOfBytesInCommBuffer( COMM_BUFFER_T buffer );
+
+/**@}*/
 
 #endif