tjh.dev
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.. attention:: This ioctl is deprecated.
15
16Synopsis
17--------
18
19.. c:function:: int ioctl(fd, VIDEO_CLEAR_BUFFER)
20 :name: VIDEO_CLEAR_BUFFER
21
22
23Arguments
24---------
25
26.. flat-table::
27 :header-rows: 0
28 :stub-columns: 0
29
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_CLEAR_BUFFER for this command.
42
43
44Description
45-----------
46
47This ioctl call clears all video buffers in the driver and in the
48decoder hardware.
49
50
51Return Value
52------------
53
54On success 0 is returned, on error -1 and the ``errno`` variable is set
55appropriately. The generic error codes are described at the
56:ref:`Generic Error Codes <gen-errors>` chapter.