tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
1.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
2.. c:namespace:: DTV.video
3
4.. _VIDEO_SET_BLANK:
5
6===============
7VIDEO_SET_BLANK
8===============
9
10Name
11----
12
13VIDEO_SET_BLANK
14
15.. attention:: This ioctl is deprecated.
16
17Synopsis
18--------
19
20.. c:macro:: VIDEO_SET_BLANK
21
22``int ioctl(fd, VIDEO_SET_BLANK, boolean mode)``
23
24Arguments
25---------
26
27.. flat-table::
28 :header-rows: 0
29 :stub-columns: 0
30
31 - .. row 1
32
33 - int fd
34
35 - File descriptor returned by a previous call to open().
36
37 - .. row 2
38
39 - int request
40
41 - Equals VIDEO_SET_BLANK for this command.
42
43 - .. row 3
44
45 - boolean mode
46
47 - TRUE: Blank screen when stop.
48
49 - .. row 4
50
51 -
52 - FALSE: Show last decoded frame.
53
54Description
55-----------
56
57This ioctl call asks the Video Device to blank out the picture.
58
59Return Value
60------------
61
62On success 0 is returned, on error -1 and the ``errno`` variable is set
63appropriately. The generic error codes are described at the
64:ref:`Generic Error Codes <gen-errors>` chapter.