Index: firmware/App/Modes/Rinseback.h
===================================================================
diff -u -r49dba1e95bb3763b4c150e7a80b84a65264a7ca8 -r1b27784f400d03678a1441cd70ab1c4111bbfa04
--- firmware/App/Modes/Rinseback.h	(.../Rinseback.h)	(revision 49dba1e95bb3763b4c150e7a80b84a65264a7ca8)
+++ firmware/App/Modes/Rinseback.h	(.../Rinseback.h)	(revision 1b27784f400d03678a1441cd70ab1c4111bbfa04)
@@ -32,8 +32,21 @@
  *  @{
  */
 
-// ********** private function prototypes **********
+// ********** public definitions ******************
 
+#pragma pack(push,1)
+
+/// Payload record structure for a rinseback data broadcast message.
+typedef struct
+{
+    F32 targetRinsebackVolumeMl;
+    F32 deliveredRinsebackVolumeMl;
+} RINSEBACK_DATA_PAYLOAD_T;
+
+#pragma pack(pop)
+
+// ********** public function prototypes **********
+
 void initRinseback( void );
 void transitionToRinseback( void );
 void execRinseback( void );