taglinefilesource code
_GUS_VOICEVOL21862drivers/sound/gus_wave.ccase _GUS_VOICEVOL2:  /* Just update the software voice level */
_GUS_VOICEVOL2109include/linux/ultrasound.h#define GUS_VOICEVOL2(chn, voice, p1)    _GUS_CMD(chn, voice, _GUS_VOICEVOL2, (p1), 0)