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SND_PCM_ADD_CHMAP_CT(9) Sound Devices 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

February 2017 Kernel Hackers Manual 3.16