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 <unistd.h></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--> 71