snd_pcm_hw_rule_add
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## Name

snd_pcm_hw_rule_add — add the hw-constraint rule

## Synopsis

`int snd_pcm_hw_rule_add (` | struct snd_pcm_runtime * runtime,
| unsigned int cond,
| int var,
| snd_pcm_hw_rule_func_t func,
| void * private,
| int dep,
| ...`)`;

## Arguments

`runtime`

  the pcm runtime instance

`cond`

  condition bits

`var`

  the variable to evaluate

`func`

  the evaluation function

`private`

  the private data pointer passed to function

`dep`

  the dependent variables

`...`

  variable arguments

## Return

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

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