1 .. -*- coding: utf-8; mode: rst -*-
3 .. _VIDEO_SELECT_SOURCE:
14 .. attention:: This ioctl is deprecated.
19 .. c:function:: int ioctl(fd, VIDEO_SELECT_SOURCE, video_stream_source_t source)
20 :name: VIDEO_SELECT_SOURCE
35 - File descriptor returned by a previous call to open().
41 - Equals VIDEO_SELECT_SOURCE for this command.
45 - video_stream_source_t source
47 - Indicates which source shall be used for the Video stream.
53 This ioctl is for DVB devices only. This ioctl was also supported by the
54 V4L2 ivtv driver, but that has been replaced by the ivtv-specific
55 ``IVTV_IOC_PASSTHROUGH_MODE`` ioctl.
57 This ioctl call informs the video device which source shall be used for
58 the input data. The possible sources are demux or memory. If memory is
59 selected, the data is fed to the video device through the write command.
61 .. c:type:: video_stream_source_t
66 VIDEO_SOURCE_DEMUX, /* Select the demux as the main source */
67 VIDEO_SOURCE_MEMORY /* If this source is selected, the stream
68 comes from the user through the write
70 } video_stream_source_t;
75 On success 0 is returned, on error -1 and the ``errno`` variable is set
76 appropriately. The generic error codes are described at the
77 :ref:`Generic Error Codes <gen-errors>` chapter.