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>
78 lines
1.6 KiB
ReStructuredText
78 lines
1.6 KiB
ReStructuredText
.. -*- coding: utf-8; mode: rst -*-
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.. _VIDEO_SELECT_SOURCE:
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===================
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VIDEO_SELECT_SOURCE
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===================
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Name
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----
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VIDEO_SELECT_SOURCE
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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_SELECT_SOURCE, video_stream_source_t source)
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:name: VIDEO_SELECT_SOURCE
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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_SELECT_SOURCE for this command.
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- .. row 3
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- video_stream_source_t source
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- Indicates which source shall be used for the Video stream.
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Description
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-----------
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This ioctl is for DVB devices only. This ioctl was also supported by the
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V4L2 ivtv driver, but that has been replaced by the ivtv-specific
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``IVTV_IOC_PASSTHROUGH_MODE`` ioctl.
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This ioctl call informs the video device which source shall be used for
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the input data. The possible sources are demux or memory. If memory is
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selected, the data is fed to the video device through the write command.
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.. c:type:: video_stream_source_t
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.. code-block:: c
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typedef enum {
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VIDEO_SOURCE_DEMUX, /* Select the demux as the main source */
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VIDEO_SOURCE_MEMORY /* If this source is selected, the stream
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comes from the user through the write
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system call */
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} video_stream_source_t;
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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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