SOUND_DEVICE
vdevgone(maj, mn|SOUND_DEVICE, mn|SOUND_DEVICE, VCHR);
case SOUND_DEVICE:
case SOUND_DEVICE:
case SOUND_DEVICE:
case SOUND_DEVICE:
case SOUND_DEVICE:
case SOUND_DEVICE:
case SOUND_DEVICE:
case SOUND_DEVICE:
#define ISDEVSOUND(x) (AUDIODEV((x)) == SOUND_DEVICE)
audio_cmajor, SOUND_DEVICE, 4)) !=0)