Start a PCM capture channel running
#include <sys/asoundlib.h> int snd_pcm_capture_go ( snd_pcm_t *handle );
The snd_pcm_capture_go() function starts the capture channel.
You should call this function only when the driver is in the SND_PCM_STATUS_READY state. Calling this function is required if you've set your capture channel's start state to SND_PCM_START_GO (see snd_pcm_plugin_params()). You can also use this function to "kick start" early a capture channel that has a start state of SND_PCM_START_DATA or SND_PCM_START_FULL.
If the parameters are valid (i.e., snd_pcm_capture_go() returns zero), then the driver state is changed to SND_PCM_STATUS_RUNNING.
This function is safe to use with plugin-aware functions.
This call is used identically to snd_pcm_plugin_params().
EOK on success, a negative errno upon failure. The errno values are available in the errno.h file.
- The state of handle is invalid, an invalid file descriptor to the channel for capture, or an invalid state change occurred. You can call snd_pcm_channel_status() to check if the state change was invalid.
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This function is not thread safe if handle (snd_pcm_t) is used across multiple threads.
Last modified: 2014-06-24