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Set a mixer element's configurable parameters
#include <sys/asoundlib.h>
int snd_mixer_element_write(
snd_mixer_t *handle,
snd_mixer_element_t *element );
- handle
- The handle for the mixer device.
This must have been created by
snd_mixer_open().
- element
- A pointer to a
snd_mixer_element_t
from which snd_mixer_element_read() sets the element's
configurable parameters.
libasound.so
The snd_mixer_element_write() function
writes the given snd_mixer_element_t structure to the driver.
|
We recommend that you work with mixer groups instead of manipulating the
elements directly. |
Zero on success, or a negative value on error.
- -EBUSY
- The element has been modified by another application.
- -EINVAL
- Invalid handle or element argument.
- -ENXIO
- The element wasn't found.
QNX Neutrino
Safety: | |
Cancellation point |
No |
Interrupt handler |
No |
Signal handler |
Yes |
Thread |
Yes |
The write may fail with -EBUSY if another
application has modified the element, and this application
hasn't read that event yet using
snd_mixer_read().
snd_mixer_element_read(),
snd_mixer_element_t,
snd_mixer_elements()
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