1 .. Permission is granted to copy, distribute and/or modify this
2 .. document under the terms of the GNU Free Documentation License,
3 .. Version 1.1 or any later version published by the Free Software
4 .. Foundation, with no Invariant Sections, no Front-Cover Texts
5 .. and no Back-Cover Texts. A copy of the license is included at
6 .. Documentation/userspace-api/media/fdl-appendix.rst.
8 .. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections
21 .. attention:: This ioctl is deprecated.
26 .. c:function:: int ioctl(fd, VIDEO_SET_BLANK, boolean mode)
27 :name: VIDEO_SET_BLANK
42 - File descriptor returned by a previous call to open().
48 - Equals VIDEO_SET_BLANK for this command.
54 - TRUE: Blank screen when stop.
59 - FALSE: Show last decoded frame.
65 This ioctl call asks the Video Device to blank out the picture.
71 On success 0 is returned, on error -1 and the ``errno`` variable is set
72 appropriately. The generic error codes are described at the
73 :ref:`Generic Error Codes <gen-errors>` chapter.