Apply a min/max range constraint to an interval
int snd_pcm_hw_constraint_minmax(struct snd_pcm_runtime * runtime, snd_pcm_hw_param_t var, unsigned int min, unsigned int max);
runtime
PCM runtime instance
var
hw_params variable to apply the range
min
the minimal value
max
the maximal value
Apply the min/max range constraint to an interval parameter.
Positive if the value is changed, zero if it's not changed, or a negative error code.