Index: leahi_dialin/fp/modules/valves.py
===================================================================
diff -u -r90f9b4334fd2c3e51dbe204b3b5e224ce5e88588 -rfa006d9b5cfefb4ee1aa2deecd7e80a4aa4a9883
--- leahi_dialin/fp/modules/valves.py	(.../valves.py)	(revision 90f9b4334fd2c3e51dbe204b3b5e224ce5e88588)
+++ leahi_dialin/fp/modules/valves.py	(.../valves.py)	(revision fa006d9b5cfefb4ee1aa2deecd7e80a4aa4a9883)
@@ -234,7 +234,7 @@
             Given valve ID must be one of the valve IDs listed below.
 
         @param valve:  unsigned int - valve ID
-        @param state:  int - valve state
+        @param state:  int - valve state  (0=de-energized/closed, 1=energized/open)
         @param reset:  integer - 1 to reset a previous override, 0 to override
         @return: 1 if successful, zero otherwise
         """