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Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1.. -*- coding: utf-8; mode: rst -*-
2
3.. _VIDEO_CLEAR_BUFFER:
4
5==================
6VIDEO_CLEAR_BUFFER
7==================
8
9Name
10----
11
12VIDEO_CLEAR_BUFFER
13
14
15Synopsis
16--------
17
18.. cpp:function:: int ioctl(fd, int request = VIDEO_CLEAR_BUFFER)
19
20
21Arguments
22---------
23
24.. flat-table::
25 :header-rows: 0
26 :stub-columns: 0
27
28
29 - .. row 1
30
31 - int fd
32
33 - File descriptor returned by a previous call to open().
34
35 - .. row 2
36
37 - int request
38
39 - Equals VIDEO_CLEAR_BUFFER for this command.
40
41
42Description
43-----------
44
45This ioctl call clears all video buffers in the driver and in the
46decoder hardware.
47
48
49Return Value
50------------
51
52On success 0 is returned, on error -1 and the ``errno`` variable is set
53appropriately. The generic error codes are described at the
54:ref:`Generic Error Codes <gen-errors>` chapter.