Index: firmware/App/Modes/ModeStandby.h
===================================================================
diff -u -rb64c49fdcf2b6d95e61e63f8e258c4e600935bbd -rf43eb1e9e0803776ec7420b16e1db8760b020bd9
--- firmware/App/Modes/ModeStandby.h	(.../ModeStandby.h)	(revision b64c49fdcf2b6d95e61e63f8e258c4e600935bbd)
+++ firmware/App/Modes/ModeStandby.h	(.../ModeStandby.h)	(revision f43eb1e9e0803776ec7420b16e1db8760b020bd9)
@@ -1,4 +1,4 @@
-/**************************************************************************
+/**********************************************************************//**
  *
  *  Copyright (c) 2019-2020 Diality Inc. - All Rights Reserved.
  *
@@ -19,10 +19,21 @@
 
 #include "DGCommon.h"
 
+/**
+ *  @defgroup StandbyMode StandbyMode
+ *  @brief Standby mode module.
+ *  Manages standby mode functions via a state machine.
+ *
+ *  @addtogroup StandbyMode
+ *  @{
+ */
+
 // ********** private function prototypes **********
 
-void initStandbyMode( void );          // initialize this module
-void transitionToStandbyMode( void );  // prepares for transition to standby mode
-void execStandbyMode( void );          // execute the standby mode state machine (call from OperationModes)
+void initStandbyMode( void );           // initialize this module
+void transitionToStandbyMode( void );   // prepares for transition to standby mode
+void execStandbyMode( void );           // execute the standby mode state machine (call from OperationModes)
 
+/**@}*/
+
 #endif