snd_pcm_hw_constraint_minmax(9) centos man page | unix.com

SND_PCM_HW_CONSTRAIN(9) 					      PCM API						   SND_PCM_HW_CONSTRAIN(9)

NAME
       snd_pcm_hw_constraint_minmax - apply a min/max range constraint to an interval

SYNOPSIS
       int snd_pcm_hw_constraint_minmax(struct snd_pcm_runtime * runtime, snd_pcm_hw_param_t var, unsigned int min, unsigned int max);

ARGUMENTS
       runtime
	   PCM runtime instance

       var
	   hw_params variable to apply the range

       min
	   the minimal value

       max
	   the maximal value

DESCRIPTION
       Apply the min/max range constraint to an interval parameter.

RETURN
       Positive if the value is changed, zero if it's not changed, or a negative error code.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						   SND_PCM_HW_CONSTRAIN(9)