Index: firmware/App/Controllers/Buttons.h
===================================================================
diff -u -rd91a24c730aeb5cd7e3eba9ef4eca78e442911f8 -rf3b83f75a19b975ad1abead662c8151a2907ac00
--- firmware/App/Controllers/Buttons.h	(.../Buttons.h)	(revision d91a24c730aeb5cd7e3eba9ef4eca78e442911f8)
+++ firmware/App/Controllers/Buttons.h	(.../Buttons.h)	(revision f3b83f75a19b975ad1abead662c8151a2907ac00)
@@ -38,6 +38,14 @@
     NUM_OF_BUTTON_STATES                        ///< Number of button states
 } BUTTON_STATE_T;
 
+#pragma pack(push,1)
+/// Payload record structure for an off button confirmation message from the UI.
+typedef struct
+{
+    U08 confirmed;                              ///< 1 = confirmed, 0 = rejected/timed out
+} OFF_BUTTON_MESSAGE_FROM_UI_PAYLOAD_T;
+#pragma pack(pop)
+
 // ********** public function prototypes **********
 
 void initButtons( void );