_CHN_VOICE       1164 include/linux/soundcard.h 		_CHN_VOICE(dev, MIDI_NOTEON, chn, note, vol)
_CHN_VOICE       1167 include/linux/soundcard.h 		_CHN_VOICE(dev, MIDI_NOTEOFF, chn, note, vol)
_CHN_VOICE       1170 include/linux/soundcard.h 		_CHN_VOICE(dev, MIDI_KEY_PRESSURE, chn, note, pressure)