snd_pcm_channel_flush()

Flush all pending data in a PCM channel's queue and stop the channel

Synopsis:

#include <sys/asoundlib.h>

int snd_pcm_channel_flush( snd_pcm_t *handle,
                           int channel );

Arguments:

handle

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

channel

The channel; SND_PCM_CHANNEL_CAPTURE or SND_PCM_CHANNEL_PLAYBACK.

Library:

libasound.so

Description:

The snd_pcm_plugin_flush() function flushes all unprocessed data in the driver queue by calling snd_pcm_capture_flush() or snd_pcm_playback_flush(), depending on the value of channel.

Returns:

Zero on success, or a negative error code.

Errors:

-EBADFD

The pcm device state isn't ready.

-EINTR

The driver isn't processing the data (Internal Error).

-EINVAL

Invalid handle.

-EIO

An invalid channel was specified, or the data wasn't all flushed.

Classification:

QNX Neutrino

See also:

snd_pcm_capture_flush(), snd_pcm_playback_drain(), snd_pcm_playback_flush(), snd_pcm_plugin_flush()