snd_afm_get_audio_mode()
Get the currently applied audio mode
Synopsis:
#include <sys/asoundlib.h>
int snd_afm_get_audio_mode( snd_afm_t *handle,
char *mode,
int size );
Arguments:
- handle
- The handle for the AFM device, which you must have opened by calling snd_afm_open_name() or snd_afm_open().
- mode
- A buffer where the function can store the mode.
- size
- The size of the mode buffer, in bytes.
Library:
libasound
Use the -l asound option with qcc to link against this library.
Description:
Note:
This function can only be used if you have QNX Acoustic Management Platform 3.0
installed.
The snd_afm_get_audio_mode() function gets the currently applied audio mode that's used to tune acoustic processing parameters.
Returns:
EOK on success, or a negative errno value upon failure.
This function can also return the return values of devctl() (see devctl() in the QNX Neutrino C Library Reference).
Errors:
- -EINVAL
- The value of handle or mode is NULL.
- -ENOMEM
- The mode buffer isn't big enough to hold the mode.
Classification:
| Safety: | |
|---|---|
| Cancellation point | Yes |
| Interrupt handler | No |
| Signal handler | Yes |
| Thread | Yes |
Caveats:
This function is not thread safe if the handle (snd_afm_t) is used across multiple threads.
Page updated: