.. -*- coding: utf-8; mode: rst -*-

.. _AUDIO_GET_CAPABILITIES:

======================
AUDIO_GET_CAPABILITIES
======================

Name
----

AUDIO_GET_CAPABILITIES


Synopsis
--------

.. cpp:function:: int ioctl(int fd, int request = AUDIO_GET_CAPABILITIES, unsigned int *cap)


Arguments
---------

.. flat-table::
    :header-rows:  0
    :stub-columns: 0


    -  .. row 1

       -  int fd

       -  File descriptor returned by a previous call to open().

    -  .. row 2

       -  int request

       -  Equals AUDIO_GET_CAPABILITIES for this command.

    -  .. row 3

       -  unsigned int \*cap

       -  Returns a bit array of supported sound formats.


Description
-----------

This ioctl call asks the Audio Device to tell us about the decoding
capabilities of the audio hardware.


Return Value
------------

On success 0 is returned, on error -1 and the ``errno`` variable is set
appropriately. The generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.