Index: MsgDefs.h
===================================================================
diff -u -r83d6a18e060a2b67f9b884e63191b027f296cb9a -rfde423593cc1f989367b52b241c3563feabe8204
--- MsgDefs.h	(.../MsgDefs.h)	(revision 83d6a18e060a2b67f9b884e63191b027f296cb9a)
+++ MsgDefs.h	(.../MsgDefs.h)	(revision fde423593cc1f989367b52b241c3563feabe8204)
@@ -213,6 +213,7 @@
     MSG_ID_HD_REQUEST_DG_ALARMS = 0xB5,                                 ///< HD request for DG to re-send trigger messages for each active alarm
     MSG_ID_HD_REQUEST_DG_SERVICE_MODE = 0xB6,                           ///< HD request for DG to to go to service mode
     MSG_ID_DG_RTC_EPOCH = 0xB7,                                         ///< DG RTC epoch broadcast message
+    MSG_ID_HD_REQUEST_DG_USAGE_INFO = 0xB8,                             ///< HD request DG usage info
 
 #ifdef EMC_TEST_BUILD
     MSG_ID_CAN_ERROR_COUNT = 0x999,  // test code in support of EMC testing