forked from Minki/linux
848d10314b
Trivially fix those broken references, by copying the structs fron the header, just like other API documentation at the DVB side. This doesn't have the level of quality used at the V4L2 side of the API, but, as this documents a deprecated API, used only by av7110 driver, it doesn't make much sense to invest time making it better. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
94 lines
1.9 KiB
ReStructuredText
94 lines
1.9 KiB
ReStructuredText
.. -*- coding: utf-8; mode: rst -*-
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.. _VIDEO_SET_ATTRIBUTES:
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====================
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VIDEO_SET_ATTRIBUTES
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====================
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Name
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----
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VIDEO_SET_ATTRIBUTES
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.. attention:: This ioctl is deprecated.
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Synopsis
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--------
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.. c:function:: int ioctl(fd, VIDEO_SET_ATTRIBUTE ,video_attributes_t vattr)
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:name: VIDEO_SET_ATTRIBUTE
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Arguments
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---------
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.. flat-table::
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:header-rows: 0
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:stub-columns: 0
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- .. row 1
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- int fd
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- File descriptor returned by a previous call to open().
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- .. row 2
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- int request
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- Equals VIDEO_SET_ATTRIBUTE for this command.
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- .. row 3
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- video_attributes_t vattr
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- video attributes according to section ??.
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Description
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-----------
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This ioctl is intended for DVD playback and allows you to set certain
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information about the stream. Some hardware may not need this
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information, but the call also tells the hardware to prepare for DVD
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playback.
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.. c:type:: video_attributes_t
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.. code-block::c
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typedef __u16 video_attributes_t;
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/* bits: descr. */
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/* 15-14 Video compression mode (0=MPEG-1, 1=MPEG-2) */
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/* 13-12 TV system (0=525/60, 1=625/50) */
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/* 11-10 Aspect ratio (0=4:3, 3=16:9) */
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/* 9- 8 permitted display mode on 4:3 monitor (0=both, 1=only pan-sca */
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/* 7 line 21-1 data present in GOP (1=yes, 0=no) */
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/* 6 line 21-2 data present in GOP (1=yes, 0=no) */
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/* 5- 3 source resolution (0=720x480/576, 1=704x480/576, 2=352x480/57 */
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/* 2 source letterboxed (1=yes, 0=no) */
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/* 0 film/camera mode (0=camera, 1=film (625/50 only)) */
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Return Value
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------------
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On success 0 is returned, on error -1 and the ``errno`` variable is set
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appropriately. The generic error codes are described at the
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:ref:`Generic Error Codes <gen-errors>` chapter.
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.. flat-table::
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:header-rows: 0
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:stub-columns: 0
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- .. row 1
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- ``EINVAL``
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- input is not a valid attribute setting.
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