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authorLinus Torvalds <torvalds@linux-foundation.org>2009-09-21 12:03:10 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2009-09-21 12:03:10 -0400
commitc720f5655df159a630fa0290a0bd67c93e92b0bf (patch)
tree940d139d0ec1ff5201efddef6cc663166a8a2df3 /Documentation/DocBook/v4l/func-close.xml
parent33e6c1a0de818d3698cdab27c42915661011319d (diff)
parent84d6ae431f315e8973aac3c3fe1d550fc9240ef3 (diff)
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (222 commits) V4L/DVB (13033): pt1: Don't use a deprecated DMA_BIT_MASK macro V4L/DVB (13029): radio-si4713: remove #include <linux/version.h> V4L/DVB (13027): go7007: convert printks to v4l2_info V4L/DVB (13026): s2250-board: Implement brightness and contrast controls V4L/DVB (13025): s2250-board: Fix memory leaks V4L/DVB (13024): go7007: Implement vidioc_g_std and vidioc_querystd V4L/DVB (13023): go7007: Merge struct gofh and go declarations V4L/DVB (13022): go7007: Fix mpeg controls V4L/DVB (13021): go7007: Fix whitespace and line lengths V4L/DVB (13020): go7007: Updates to Kconfig and Makefile V4L/DVB (13019): video: initial support for ADV7180 V4L/DVB (13018): kzalloc failure ignored in au8522_probe() V4L/DVB (13017): gspca: kmalloc failure ignored in sd_start() V4L/DVB (13016): kmalloc failure ignored in lgdt3304_attach() and s921_attach() V4L/DVB (13015): kmalloc failure ignored in m920x_firmware_download() V4L/DVB (13014): Add support for Compro VideoMate E800 (DVB-T part only) V4L/DVB (13013): FM TX: si4713: Kconfig: Fixed two typos. V4L/DVB (13012): uvc: introduce missing kfree V4L/DVB (13011): Change tuner type of BeholdTV cards V4L/DVB (13009): gspca - stv06xx-hdcs: Reduce exposure range ...
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1<refentry id="func-close">
2 <refmeta>
3 <refentrytitle>V4L2 close()</refentrytitle>
4 &manvol;
5 </refmeta>
6
7 <refnamediv>
8 <refname>v4l2-close</refname>
9 <refpurpose>Close a V4L2 device</refpurpose>
10 </refnamediv>
11
12 <refsynopsisdiv>
13 <funcsynopsis>
14 <funcsynopsisinfo>#include &lt;unistd.h&gt;</funcsynopsisinfo>
15 <funcprototype>
16 <funcdef>int <function>close</function></funcdef>
17 <paramdef>int <parameter>fd</parameter></paramdef>
18 </funcprototype>
19 </funcsynopsis>
20 </refsynopsisdiv>
21
22 <refsect1>
23 <title>Arguments</title>
24
25 <variablelist>
26 <varlistentry>
27 <term><parameter>fd</parameter></term>
28 <listitem>
29 <para>&fd;</para>
30 </listitem>
31 </varlistentry>
32 </variablelist>
33 </refsect1>
34
35 <refsect1>
36 <title>Description</title>
37
38 <para>Closes the device. Any I/O in progress is terminated and
39resources associated with the file descriptor are freed. However data
40format parameters, current input or output, control values or other
41properties remain unchanged.</para>
42 </refsect1>
43
44 <refsect1>
45 <title>Return Value</title>
46
47 <para>The function returns <returnvalue>0</returnvalue> on
48success, <returnvalue>-1</returnvalue> on failure and the
49<varname>errno</varname> is set appropriately. Possible error
50codes:</para>
51
52 <variablelist>
53 <varlistentry>
54 <term><errorcode>EBADF</errorcode></term>
55 <listitem>
56 <para><parameter>fd</parameter> is not a valid open file
57descriptor.</para>
58 </listitem>
59 </varlistentry>
60 </variablelist>
61 </refsect1>
62</refentry>
63
64<!--
65Local Variables:
66mode: sgml
67sgml-parent-document: "v4l2.sgml"
68indent-tabs-mode: nil
69End:
70-->