video-set-blank.rst (1050B)
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.