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snd_pcm_channel_setup()

Get the current configuration for the specified PCM channel

Synopsis:

#include <sys/asoundlib.h>

int snd_pcm_channel_setup( 
       snd_pcm_t *handle, 
       snd_pcm_channel_setup_t *setup );

Arguments:

handle

The handle for the PCM device, which you must have opened by calling snd_pcm_open() or snd_pcm_open_preferred().

setup

A pointer to a snd_pcm_channel_setup_t structure that snd_pcm_channel_setup() fills with information about the PCM channel setup.

Set the setup structure's channel member to specify the direction. All other members are read-only.

Library:

libasound.so

Description:

The snd_pcm_channel_setup() function fills the setup structure with data about the PCM channel's configuration.

Returns:

Zero on success, or a negative error code.

Errors:

-EINVAL

Invalid handle

Classification:

QNX Neutrino

Safety:
Cancellation point	No
Interrupt handler	No
Signal handler	Yes
Thread	Yes

See also:

snd_pcm_channel_params(), snd_pcm_channel_setup_t, snd_mixer_gid_t, snd_pcm_open(), snd_pcm_open_preferred(), snd_pcm_plugin_setup()

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