snd_gf1_pcm_volume_change  450 sound/isa/gus/gus_pcm.c 		pcmp->pvoices[0]->volume_change = snd_gf1_pcm_volume_change;
snd_gf1_pcm_volume_change  458 sound/isa/gus/gus_pcm.c 		pcmp->pvoices[1]->volume_change = snd_gf1_pcm_volume_change;