Index: firmware/App/Drivers/EjectorMotor.h
===================================================================
diff -u -rb824ef4b479578c5aa702abd9147aef505a6fb04 -r153784735cd268c81765544a581e36d76067d344
--- firmware/App/Drivers/EjectorMotor.h	(.../EjectorMotor.h)	(revision b824ef4b479578c5aa702abd9147aef505a6fb04)
+++ firmware/App/Drivers/EjectorMotor.h	(.../EjectorMotor.h)	(revision 153784735cd268c81765544a581e36d76067d344)
@@ -33,15 +33,25 @@
 
 // ********** public definitions **********
 
+/// Enumeration of the ejector optical sensor
+typedef enum
+{
+    EJECTOR_OPT_SENSOR_RETRACT = 0,                 ///< Ejector optical sensor retract.
+    EJECTOR_OPT_SENSOR_ENGAGE,                      ///< Ejector optical sensor engage.
+    NUM_OF_EJECTOR_OPT_SENSORS                      ///< Num of ejector optical sensors.
+} EJECTOR_OPT_SENSOR_T;
+
 // ********** public function prototypes **********
 
 void initEjectorMotor( void );
 void disableEjectorMotor( void );
 BOOL setEjectorMotorSpeed( F32 rpm );
 F32  getEjectorMotorSetSpeed( void );
 void execEjectorMotorRamping( void );
+BOOL isEjectorOpticalSensorActive( EJECTOR_OPT_SENSOR_T sensorID );
 
 BOOL testSetEjectorMotorSpeed( MESSAGE_T *message );
+BOOL testEjectorOpticalSensorOverride( MESSAGE_T *message );
 
 /**@}*/