linux_dsm_epyc7002/Documentation/media/uapi/dvb/audio-set-bypass-mode.rst
Mauro Carvalho Chehab 699f19e3f1 media: dvb uAPI docs: Prefer use "Digital TV instead of "DVB"
The usage of the term "DVB" at the dvb API docs is confusing,
as, right now, it can refer to either the European digital TV
standard or to the subsystem.

So, prefer calling it as "Digital TV" on most places, to avoid
ambiguity.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-09-05 06:18:03 -04:00

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.. -*- coding: utf-8; mode: rst -*-
.. _AUDIO_SET_BYPASS_MODE:
=====================
AUDIO_SET_BYPASS_MODE
=====================
Name
----
AUDIO_SET_BYPASS_MODE
.. attention:: This ioctl is deprecated
Synopsis
--------
.. c:function:: int ioctl(int fd, AUDIO_SET_BYPASS_MODE, boolean mode)
:name: AUDIO_SET_BYPASS_MODE
Arguments
---------
.. flat-table::
:header-rows: 0
:stub-columns: 0
-
- int fd
- File descriptor returned by a previous call to open().
-
- boolean mode
- Enables or disables the decoding of the current Audio stream in
the Digital TV subsystem.
TRUE: Bypass is disabled
FALSE: Bypass is enabled
Description
-----------
This ioctl call asks the Audio Device to bypass the Audio decoder and
forward the stream without decoding. This mode shall be used if streams
that cant be handled by the Digial TV system shall be decoded. Dolby
DigitalTM streams are automatically forwarded by the Digital TV subsystem if
the hardware can handle it.
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.