---
name: "snd_ac97_update_power"
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_ac97_update_power"
---

# snd\_ac97\_update\_power(9)

update the powerdown register

## NAME

snd\_ac97\_update\_power - update the powerdown register

## SYNOPSIS

**int snd\_ac97\_update\_power(struct snd\_ac97 \*** *ac97***, int** *reg***, int** *powerup***);**

## ARGUMENTS

*ac97*

the codec instance

*reg*

the rate register, e.g. AC97\_PCM\_FRONT\_DAC\_RATE

*powerup*

non-zero when power up the part

## DESCRIPTION

Update the AC97 powerdown register bits of the given part.

## RETURN

Zero.

## COPYRIGHT