centos man page for snd_pcm_add_chmap_ctls

SND_PCM_ADD_CHMAP_CT(9) 					      PCM API						   SND_PCM_ADD_CHMAP_CT(9)

NAME
       snd_pcm_add_chmap_ctls - create channel-mapping control elements

SYNOPSIS
       int snd_pcm_add_chmap_ctls(struct snd_pcm * pcm, int stream, const struct snd_pcm_chmap_elem * chmap, int max_channels,
				  unsigned long private_value, struct snd_pcm_chmap ** info_ret);

ARGUMENTS
       pcm
	   the assigned PCM instance

       stream
	   stream direction

       chmap
	   channel map elements (for query)

       max_channels
	   the max number of channels for the stream

       private_value
	   the value passed to each kcontrol's private_value field

       info_ret
	   store struct snd_pcm_chmap instance if non-NULL

DESCRIPTION
       Create channel-mapping control elements assigned to the given PCM stream(s).

RETURN
       Zero if successful, or a negative error value.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						   SND_PCM_ADD_CHMAP_CT(9)