snd_ac97_pcm_open
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## Name

snd_ac97_pcm_open — opens the given AC97 pcm

## Synopsis

`int snd_ac97_pcm_open (` | struct ac97_pcm * pcm,
| unsigned int rate,
| enum ac97_pcm_cfg cfg,
| unsigned short slots`)`;

## Arguments

`pcm`

  the ac97 pcm instance

`rate`

  rate in Hz, if codec does not support VRA, this value must be 48000Hz

`cfg`

  output stream characteristics

`slots`

  a subset of allocated slots (snd_ac97_pcm_assign) for this pcm

## Description

It locks the specified slots and sets the given rate to AC97 registers.

## Return

Zero if successful, or a negative error code on failure.

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