snd_afm_get_param()

Updated: May 06, 2022

Get a configuration parameter for the specified AFM

Synopsis:

#include <sys/asoundlib.h>

int snd_afm_get_param( snd_afm_t *handle,
                       int id);
                       size_t* size);
                       void* data);

Arguments:

handle
The handle for the AFM device, which you must have opened by calling snd_afm_open_name() or snd_afm_open().
id
The identifier for the AFM parameter to get the value for.
size
The size of the buffer that data points to.
data
A pointer to the location to store the retrieved value 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_get_param() function is only used with specific AFMs. For information on which parameters are available for a specific AFM and their expected sizes, see the corresponding AFM header installed under usr/include/ado_afm/.

Returns:

EOK 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.