update_voice
static void update_voice(struct snd_emux_voice *vp, int update);
.update = update_voice,
static void update_voice(struct snd_emux_voice *vp, int update);
.update = update_voice,
update_voice(emu, vp, SNDRV_EMUX_UPDATE_VOLUME);
update_voice(emu, vp, update);
update_voice(emu, vp, update);
static void update_voice(struct snd_emux *emu, struct snd_emux_voice *vp, int update);