2
0
mirror of https://github.com/edk2-porting/linux-next.git synced 2025-01-05 04:04:01 +08:00
linux-next/Documentation/linux_tv/media/dvb/audio-get-capabilities.rst

60 lines
1010 B
ReStructuredText
Raw Normal View History

.. -*- coding: utf-8; mode: rst -*-
.. _AUDIO_GET_CAPABILITIES:
======================
AUDIO_GET_CAPABILITIES
======================
NAME
----
AUDIO_GET_CAPABILITIES
SYNOPSIS
--------
.. c: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.