snd_pcm_add_chmap_ctls (9) - Linux Manuals

snd_pcm_add_chmap_ctls: create channel-mapping control elements

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.

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