20   def opsIsChannel(self, dir, chn):  argument
23   def opsGetRange(self, dir):  argument
26   def opsSetRange(self, dir, min, max):  argument
30   def volumeToUser(self, info, dir, value):  argument
38   def volumeFromUser(self, info, dir, value):  argument
71   def attachVolume(self, helem, dir):  argument
78   def attachSwitch(self, helem, dir):  argument
100   def opsGetVolume(self, dir, chn):  argument
103   def opsSetVolume(self, dir, chn, value):  argument
112   def opsGetSwitch(self, dir, chn):  argument
115   def opsSetSwitch(self, dir, chn, value):  argument
148   def opsIsEnumerated(self, dir=-1):  argument
156   def opsIsEnumCnt(self, dir):  argument