Index: dialin/hd/valves.py
===================================================================
diff -u -rd57827c9d5280734dcd1f41b3a1746b0788d4a8c -rbae09ec0f3ed6a408bbe17804bd7c05708527973
--- dialin/hd/valves.py	(.../valves.py)	(revision d57827c9d5280734dcd1f41b3a1746b0788d4a8c)
+++ dialin/hd/valves.py	(.../valves.py)	(revision bae09ec0f3ed6a408bbe17804bd7c05708527973)
@@ -35,7 +35,6 @@
 
 @unique
 class ValvesPositions(DialinEnum):
-    VALVE_POSITION_NOT_IN_POSITION = 0
     VALVE_POSITION_A_INSERT_EJECT  = 1
     VALVE_POSITION_B_OPEN          = 2
     VALVE_POSITION_C_CLOSE         = 3