Symbol: CTL_MONITOR_GAIN
usr/src/uts/common/io/usb/clients/audio/usb_ac/usb_ac.c
5091
case CTL_MONITOR_GAIN:
usr/src/uts/common/io/usb/clients/audio/usb_ac/usb_ac.c
5209
CTL_MONITOR_GAIN, 0);