snd_pcm_hw_param_first9
Refine config space and return minimum value
Usage
int snd_pcm_hw_param_first(struct snd_pcm_substream * pcm, struct snd_pcm_hw_params * params, snd_pcm_hw_param_t var, int * dir);
Arguments
pcm
PCM instance
params
the hw_params instance
var
parameter to retrieve
dir
pointer to the direction (-1,0,1) or NULL
Overview
Inside configuration space defined by params remove from var all values > minimum. Reduce configuration space accordingly.
Return
The minimum, or a negative error code on failure.
Releases
6 releases since Debian 4.0 (Etch); the text changed 5 times.