snd_afm_file_descriptor()

Return the file descriptor of the connection to the AFM interface

Synopsis:

#include <sys/asoundlib.h>

int snd_afm_file_descriptor( snd_afm_t *handle );

Arguments:

handle: The handle for the AFM device, which you must have opened by calling snd_afm_open_name() or snd_afm_open().

Library:

libasound.so

Use the -l asound option to qcc to link against this library.

Description:

(QNX Software Development Platform 6.6 io-audio patch [patch ID 4510] or later) The snd_afm_file_descriptor() function returns the file descriptor of the connection to the Acoustics Management Platform Functional Module (AFM) interface.

You can use this file descriptor with ioctl(), ionotify(), poll(), or select() (see the QNX Neutrino C Library Reference).

Note: Don't close() this file descriptor.

Returns:

The file descriptor of the connection to the AFM interface on success, or a negative error code.

Errors:

-EINVAL: The handle is invalid.

Classification:

QNX Neutrino

Safety:
Cancellation point	No
Interrupt handler	No
Signal handler	Yes
Thread	No