Name

snd_pcm_hw_param_first —

Synopsis

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

Description

Inside configuration space defined by PARAMS remove from PAR all values > minimum. Reduce configuration space accordingly. Return the minimum.