snd_pcm_hw_constraint_single9
Constrain parameter to a single value
Usage
int snd_pcm_hw_constraint_single(struct snd_pcm_runtime * runtime, snd_pcm_hw_param_t var, unsigned int val);
Arguments
runtime
PCM runtime instance
var
The hw_params variable to constrain
val
The value to constrain to
Return
Positive if the value is changed, zero if it's not changed, or a negative error code.