Index: firmware/App/Controllers/DGInterface.c
===================================================================
diff -u -r0b87f7e6142dc3710db5c32a0c7c6694343dd717 -rfee22801cab60be10f4e7c08a1a96645dfdcaf8b
--- firmware/App/Controllers/DGInterface.c	(.../DGInterface.c)	(revision 0b87f7e6142dc3710db5c32a0c7c6694343dd717)
+++ firmware/App/Controllers/DGInterface.c	(.../DGInterface.c)	(revision fee22801cab60be10f4e7c08a1a96645dfdcaf8b)
@@ -27,8 +27,8 @@
 
 // ********** private definitions **********
 
-#define START_DG_CMD                        TRUE            ///< .
-#define STOP_DG_CMD                         FALSE           ///< .
+#define START_DG_CMD                        TRUE            ///< Parameter for DG start/stop command function.  True = start.
+#define STOP_DG_CMD                         FALSE           ///< Parameter for DG start/stop command function.  False = stop.
 
 #define DRAIN_RESERVOIR_TO_VOLUME_ML        100             ///< Drain reservoir to this volume (in mL) during treatment.
 #define FILL_RESERVOIR_TO_VOLUME_ML         1500            ///< Fill reservoir to this volume (in mL) during treatment.