snd_pcm_hw_constraint_step
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## Name

snd_pcm_hw_constraint_step — add a hw constraint step rule

## Synopsis

`int snd_pcm_hw_constraint_step (` | struct snd_pcm_runtime * runtime,
| unsigned int cond,
| snd_pcm_hw_param_t var,
| unsigned long step`)`;

## Arguments

`runtime`

  PCM runtime instance

`cond`

  condition bits

`var`

  hw_params variable to apply the step constraint

`step`

  step size

## Return

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

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