Index: firmware/App/Controllers/BloodFlow.h
===================================================================
diff -u -r054fa08b67ed2a31f7848b179fbcd1b4da501b0f -r9d4666bf3064df18a6d935125d7a69e4e8234e84
--- firmware/App/Controllers/BloodFlow.h	(.../BloodFlow.h)	(revision 054fa08b67ed2a31f7848b179fbcd1b4da501b0f)
+++ firmware/App/Controllers/BloodFlow.h	(.../BloodFlow.h)	(revision 9d4666bf3064df18a6d935125d7a69e4e8234e84)
@@ -1,4 +1,4 @@
-/**************************************************************************
+/**********************************************************************//**
  *
  *  Copyright (c) 2019-2020 Diality Inc. - All Rights Reserved.
  *
@@ -19,10 +19,19 @@
 
 #include "HDCommon.h"
 
+/**
+ *  @defgroup BloodFlow BloodFlow
+ *  @brief Blood Pump & Blood Flow controller/monitor module.  Monitors the
+ *  blood flow rate and controls the blood pump.
+ *
+ *  @addtogroup BloodFlow
+ *  @{
+ */
+
 // ********** public definitions **********
 
-#define MAX_BLOOD_FLOW_RATE                 500             // mL/min
-#define MIN_BLOOD_FLOW_RATE                 100             // mL/min
+#define MAX_BLOOD_FLOW_RATE                 500             ///< Maximum blood flow rate (in mL/min).
+#define MIN_BLOOD_FLOW_RATE                 100             ///< Minimum blood flow rate (in mL/min).
 
 // ********** public function prototypes **********
 
@@ -32,6 +41,8 @@
 
 BOOL setBloodPumpTargetFlowRate( U32 flowRate, MOTOR_DIR_T dir, PUMP_CONTROL_MODE_T mode );
 void signalBloodPumpHardStop( void );
+void signalBloodPumpRotorHallSensor( void );
+BOOL homeBloodPump( void );
 
 SELF_TEST_STATUS_T execBloodFlowTest( void );
 
@@ -57,4 +68,6 @@
 BOOL testSetMeasuredBloodPumpMCCurrentOverride( F32 value );
 BOOL testResetMeasuredBloodPumpMCCurrentOverride( void );
 
+/**@}*/
+
 #endif