Index: HDDefs.h
===================================================================
diff -u -r18a4501e28709427bb8c6c53759d35e2536a4c42 -r6a2b7e815550b78f472675f1edfbef781c9ac436
--- HDDefs.h	(.../HDDefs.h)	(revision 18a4501e28709427bb8c6c53759d35e2536a4c42)
+++ HDDefs.h	(.../HDDefs.h)	(revision 6a2b7e815550b78f472675f1edfbef781c9ac436)
@@ -747,6 +747,8 @@
     HD_EVENT_SERVICE_UPDATE,                                            ///< HD new service record has been updated
     HD_EVENT_USAGE_INFO_UPDATE,                                         ///< HD new usage information has been updated
     HD_EVENT_SW_CONFIG_UPDATE,                                          ///< HD new software configuration has been updated
+    HD_EVENT_BUTTON,                                                    ///< HD button pressed/released
+    HD_EVENT_SAFETY_LINE,                                               ///< HD safety line pulled/released
     HD_EVENT_RSRVR_1_LOAD_CELL_START_VALUES,                            ///< HD reservoir 1 load cells start values
     HD_EVENT_RSRVR_1_LOAD_CELL_END_VALUES,                              ///< HD reservoir 2 load cells end values
     HD_EVENT_RSRVR_2_LOAD_CELL_START_VALUES,                            ///< HD reservoir 2 load cells start values