Index: firmware/App/Controllers/DialOutFlow.h
===================================================================
diff -u -ra74a984a7059f75d86ad87d6d9499bd8f94cc976 -r7a14f1cc62ad1cb1d7d694f632ff3ddb90ca4717
--- firmware/App/Controllers/DialOutFlow.h	(.../DialOutFlow.h)	(revision a74a984a7059f75d86ad87d6d9499bd8f94cc976)
+++ firmware/App/Controllers/DialOutFlow.h	(.../DialOutFlow.h)	(revision 7a14f1cc62ad1cb1d7d694f632ff3ddb90ca4717)
@@ -1,4 +1,4 @@
-/**************************************************************************
+/**********************************************************************//**
  *
  *  Copyright (c) 2019-2020 Diality Inc. - All Rights Reserved.
  *
@@ -19,27 +19,39 @@
 
 #include "Common.h"
 
+/**
+ *  @defgroup DialysateOutlet DialysateOutlet
+ *  @brief Dialysate outlet pump and load cells controller/monitor module.
+ *  Monitors the dialysate outlet pump and load cells.  Controls the dialysate
+ *  outlet pump for ultrafiltration.
+ *
+ *  @addtogroup DialysateOutlet
+ *  @{
+ */
+
 // ********** public definitions **********
 
+/// Enumeration of load cell sensors.
 typedef enum Load_Cells
 {
-    LOAD_CELL_RESERVOIR_1_PRIMARY = 0,
-    LOAD_CELL_RESERVOIR_1_BACKUP,
-    LOAD_CELL_RESERVOIR_2_PRIMARY,
-    LOAD_CELL_RESERVOIR_2_BACKUP,
-    NUM_OF_LOAD_CELLS
+    LOAD_CELL_RESERVOIR_1_PRIMARY = 0,              ///< Primary load cell for reservoir 1.
+    LOAD_CELL_RESERVOIR_1_BACKUP,                   ///< Backup load cell for reservoir 1.
+    LOAD_CELL_RESERVOIR_2_PRIMARY,                  ///< Primary load cell for reservoir 2.
+    LOAD_CELL_RESERVOIR_2_BACKUP,                   ///< Backup load cell for reservoir 2.
+    NUM_OF_LOAD_CELLS                               ///< # of load cell sensors.
 } LOAD_CELL_T;
 
 #pragma pack(push, 1)
+/// Dialysate outlet pump broadcast record
 typedef struct DialOutBroadcastingRecord
 {
-    F32 refUFVolMl;
-    F32 measUFVolMl;
-    F32 measRotSpdRPM;
-    F32 measSpdRPM;
-    F32 measMCSpdRPM;
-    F32 measMCCurrmA;
-    F32 setPWMpct;
+    F32 refUFVolMl;                                 ///< Reference ultrafiltration volume in mL.
+    F32 measUFVolMl;                                ///< Total measured ultrafiltration volume in mL.
+    F32 measRotSpdRPM;                              ///< Latest measured rotor speed for dialysate outlet pump in RPM.
+    F32 measSpdRPM;                                 ///< Latest measured motor speed for dialysate outlet pump in RPM.
+    F32 measMCSpdRPM;                               ///< Latest measured motor controller speed for dialysate outlet pump in RPM.
+    F32 measMCCurrmA;                               ///< Latest measured motor controller current for dialysate outlet pump in mA.
+    F32 setPWMpct;                                  ///< Latest PWM duty cycle for dialysate outlet pump in % (0..100).
 } DIAL_OUT_FLOW_DATA_T;
 #pragma pack(pop)
 
@@ -83,5 +95,7 @@
 BOOL testSetDialOutLoadCellWeightOverride( U32 sensor, F32 value );
 BOOL testResetDialOutLoadCellWeightOverride( U32 sensor );
 
+/**@}*/
+
 #endif