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-rw-r--r--include/sound/control.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/sound/control.h b/include/sound/control.h
index bd7246de58e7..ca13a44ae9d4 100644
--- a/include/sound/control.h
+++ b/include/sound/control.h
@@ -248,6 +248,11 @@ int snd_ctl_add_vmaster_hook(struct snd_kcontrol *kctl,
void *private_data);
void snd_ctl_sync_vmaster(struct snd_kcontrol *kctl, bool hook_only);
#define snd_ctl_sync_vmaster_hook(kctl) snd_ctl_sync_vmaster(kctl, true)
+int snd_ctl_apply_vmaster_slaves(struct snd_kcontrol *kctl,
+ int (*func)(struct snd_kcontrol *vslave,
+ struct snd_kcontrol *slave,
+ void *arg),
+ void *arg);
/*
* Helper functions for jack-detection controls