Index: firmware/App/Controllers/AirPump.c
===================================================================
diff -u -rb1ad59a650ecca8f4ba54bfc2c86040ca8e38652 -rd165e4002a3ed1fd2e6e61cb5bf0a2717ebd6f1a
--- firmware/App/Controllers/AirPump.c	(.../AirPump.c)	(revision b1ad59a650ecca8f4ba54bfc2c86040ca8e38652)
+++ firmware/App/Controllers/AirPump.c	(.../AirPump.c)	(revision d165e4002a3ed1fd2e6e61cb5bf0a2717ebd6f1a)
@@ -34,16 +34,15 @@
 
 // ********** private definitions **********
 
-#define AIR_PUMP_DATA_PUB_INTERVAL          ( MS_PER_SECOND / TASK_GENERAL_INTERVAL )
-#define DATA_PUBLISH_COUNTER_START_COUNT    13
-#define AIR_PUMP_GPIO_PIN                   0x04
-#define AIR_PUMP_OPERATION_TIMEOUT          ( 10 * MS_PER_SECOND )
+#define AIR_PUMP_DATA_PUB_INTERVAL          ( MS_PER_SECOND / TASK_GENERAL_INTERVAL )           ///< Air pump data publish interval.
+#define DATA_PUBLISH_COUNTER_START_COUNT    13                                                  ///< Air pump data publish start counter.
+#define AIR_PUMP_GPIO_PIN                   0x04                                                ///< Air pump GPIO pin number.
 
 typedef enum AirPumpMotorStates
 {
-    AIR_PUMP_MOTOR_OFF = 0,      ///< Air Pump Off
-    AIR_PUMP_MOTOR_ON,           ///< Air Pump On
-    NUM_OF_AIR_PUMP_MOTOR_STATES,
+    AIR_PUMP_MOTOR_OFF = 0,                                                                     ///< Air Pump Off.
+    AIR_PUMP_MOTOR_ON,                                                                          ///< Air Pump On.
+    NUM_OF_AIR_PUMP_MOTOR_STATES,                                                               ///< Number of air pump motor states.
 
 } AIR_PUMP_MOTOR_STATE_T;