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

## Description

Returns zero if successful, or a negative error code on failure.

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