snd_ctl_add_vmaster_hook 234 include/sound/control.h int snd_ctl_add_vmaster_hook(struct snd_kcontrol *kctl, snd_ctl_add_vmaster_hook 455 sound/core/vmaster.c EXPORT_SYMBOL_GPL(snd_ctl_add_vmaster_hook); snd_ctl_add_vmaster_hook 2056 sound/pci/hda/hda_codec.c snd_ctl_add_vmaster_hook(hook->sw_kctl, vmaster_hook, hook);