Index: dialin/common/hd_defs.py
===================================================================
diff -u -r8474f8e345f165187d4dde17840575ee4e98a9b4 -r33a8e39db65f087bb9abfb1a558cd80c955166e9
--- dialin/common/hd_defs.py	(.../hd_defs.py)	(revision 8474f8e345f165187d4dde17840575ee4e98a9b4)
+++ dialin/common/hd_defs.py	(.../hd_defs.py)	(revision 33a8e39db65f087bb9abfb1a558cd80c955166e9)
@@ -331,3 +331,9 @@
     TREATMENT_END_WAIT_FOR_RINSEBACK_STATE = 0
     TREATMENT_END_PAUSED_STATE = 1
     NUM_OF_TREATMENT_END_STATES = 2
+
+
+@unique
+class HDFaultState(DialinEnum):
+    HD_FAULT_STATE_START = 0
+    NUM_OF_HD_FAULT_STATES = 1