snd_pcm_hw_param_value
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## Name

snd_pcm_hw_param_value — return `params` field `var` value

## Synopsis

`int snd_pcm_hw_param_value (` | const struct snd_pcm_hw_params * params,
| snd_pcm_hw_param_t var,
| int * dir`)`;

## Arguments

`params`

  the hw_params instance

`var`

  parameter to retrieve

`dir`

  pointer to the direction (-1,0,1) or `NULL`

## Return

The value for field `var` if it's fixed in configuration space defined by `params`. -`EINVAL` otherwise.

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