---
name: "snd_ctl_sync_vmaster"
section: "9"
platform: "linux"
package: "linux-manual-4.9"
version: "4.9.228-1"
release: "Debian 9 (Stretch)"
platforms: ["linux"]
url: "https://new.carta.tech/snd_ctl_sync_vmaster"
---

# snd\_ctl\_sync\_vmaster(9)

Sync the vmaster slaves and hook

## NAME

snd\_ctl\_sync\_vmaster - Sync the vmaster slaves and hook

## SYNOPSIS

**void snd\_ctl\_sync\_vmaster(struct snd\_kcontrol \*** *kcontrol***, bool** *hook\_only***);**

## ARGUMENTS

*kcontrol*

vmaster kctl element

*hook\_only*

sync only the hook

## DESCRIPTION

Forcibly call the put callback of each slave and call the hook function to synchronize with the current value of the given vmaster element. NOP when NULL is passed to *kcontrol*.

## COPYRIGHT