Index: dialin/hd/air_pump.py
===================================================================
diff -u -r45ef5740d52d0f744175ace8312d62c023abc1b9 -r120e61c1fcb932926ae645ed5a9c1b6b7d4990db
--- dialin/hd/air_pump.py	(.../air_pump.py)	(revision 45ef5740d52d0f744175ace8312d62c023abc1b9)
+++ dialin/hd/air_pump.py	(.../air_pump.py)	(revision 120e61c1fcb932926ae645ed5a9c1b6b7d4990db)
@@ -51,6 +51,10 @@
     def get_air_pump_state(self):
         """
         Gets the air pump state
+            AIR_PUMP_STATE_INIT = 0,        ///< Air Pump Initialize state
+            AIR_PUMP_STATE_OFF,             ///< Air Pump Off state
+            AIR_PUMP_STATE_ON,              ///< Air Pump On state
+            NUM_OF_AIR_PUMP_STATES,         ///< Number of air pump states
 
         @return: the current air pump state.
         """
@@ -72,6 +76,11 @@
     def cmd_air_pump_set_state(self, state: int) -> int:
         """
         Constructs and sends the air pump set state command.
+            AIR_PUMP_STATE_INIT = 0,        ///< Air Pump Initialize state
+            AIR_PUMP_STATE_OFF,             ///< Air Pump Off state
+            AIR_PUMP_STATE_ON,              ///< Air Pump On state
+            NUM_OF_AIR_PUMP_STATES,         ///< Number of air pump states
+            
         Constraints:
             Must be logged into HD.