snd_afm_status()
Get the current status of an AFM
Synopsis:
#include <sys/asoundlib.h>
int snd_afm_status( snd_afm_t *handle,
snd_afm_status_t *status);
Arguments:
- handle
- The handle for the AFM device, which you must have opened by calling snd_afm_open_name() or snd_afm_open().
- status
- A pointer to the location to store the retrieved AFM status in.
Library:
libasound.so
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_status() function retrieves the status information for an AMP Functional Module (AFM) with the specified handle.
Returns:
The status for the specified AFM on success, or a negative errno upon failure.
Errors:
- -EINVAL
- The state of handle is invalid or an invalid state change occurred.
Classification:
QNX Neutrino
| 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.
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