Index: firmware/App/Modes/ModeStandby.h
===================================================================
diff -u -r395522dffef1348e176564925656012f529c1910 -rc2951f468ebc19160ee9af14cc9c35bc16121889
--- firmware/App/Modes/ModeStandby.h	(.../ModeStandby.h)	(revision 395522dffef1348e176564925656012f529c1910)
+++ firmware/App/Modes/ModeStandby.h	(.../ModeStandby.h)	(revision c2951f468ebc19160ee9af14cc9c35bc16121889)
@@ -32,6 +32,13 @@
 
 // ********** public definitions **********
 
+/// Payload record structure for a treatment initiation request
+typedef struct
+{
+    U32 command;     ///< Command code (Cancel=0, Initiate=1)
+    U32 modality;    ///< Treatment modality selected by user (ignored on cancel)
+} INITIATE_TREATMENT_REQUEST_PAYLOAD_T;
+
 // ********** public function prototypes **********
 
 void initStandbyMode( void );                                   // Initialize this unit
@@ -41,6 +48,10 @@
 BOOL signalUserInitiateTreatment( MESSAGE_T *message );         // User has initiated/cancelled treatment workflow
 void signalAlarmActionToStandbyMode( ALARM_ACTION_T action );   // Execute alarm action as appropriate for Standby mode
 
+void setFluidType( U32 modality );                              // Set a specific fluid type
+U32 getFluidType( void );                                       // Get a specific fluid type
+U32 getModality( void );                                        // Get a specific modality
+
 /**@}*/
 
 #endif