snd_pcm_hw_rule_add(9) 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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