1<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>v4l2_ctrl_new_custom</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="Linux Device Drivers"><link rel="up" href="mediadev.html#id-1.8.2" title="Video2Linux devices"><link rel="prev" href="API-v4l2-ctrl-handler-log-status.html" title="v4l2_ctrl_handler_log_status"><link rel="next" href="API-v4l2-ctrl-new-std.html" title="v4l2_ctrl_new_std"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span class="phrase">v4l2_ctrl_new_custom</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-v4l2-ctrl-handler-log-status.html">Prev</a> </td><th width="60%" align="center">Video2Linux devices</th><td width="20%" align="right"> <a accesskey="n" href="API-v4l2-ctrl-new-std.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-v4l2-ctrl-new-custom"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>v4l2_ctrl_new_custom — 
2     Allocate and initialize a new custom V4L2 control.
3 </p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><div class="funcsynopsis"><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef"><a class="link" href="API-struct-v4l2-ctrl.html" title="struct v4l2_ctrl">struct v4l2_ctrl</a> * <b class="fsfunc">v4l2_ctrl_new_custom </b>(</code></td><td><a class="link" href="API-struct-v4l2-ctrl-handler.html" title="struct v4l2_ctrl_handler">struct v4l2_ctrl_handler</a> * <var class="pdparam">hdl</var>, </td></tr><tr><td> </td><td><a class="link" href="API-struct-v4l2-ctrl-config.html" title="struct v4l2_ctrl_config">const struct v4l2_ctrl_config</a> * <var class="pdparam">cfg</var>, </td></tr><tr><td> </td><td>void * <var class="pdparam">priv</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1"><a name="id-1.8.2.26.5"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>hdl</code></em></span></dt><dd><p>
4     The control handler.
5    </p></dd><dt><span class="term"><em class="parameter"><code>cfg</code></em></span></dt><dd><p>
6     The control's configuration data.
7    </p></dd><dt><span class="term"><em class="parameter"><code>priv</code></em></span></dt><dd><p>
8     The control's driver-specific private data.
9    </p></dd></dl></div></div><div class="refsect1"><a name="id-1.8.2.26.6"></a><h2>Description</h2><p>
10   If the <span class="structname"><a class="link" href="API-struct-v4l2-ctrl.html" title="struct v4l2_ctrl">v4l2_ctrl</a></span> struct could not be allocated then NULL is returned
11   and <em class="parameter"><code>hdl</code></em>-&gt;error is set to the error code (if it wasn't set already).
12</p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="API-v4l2-ctrl-handler-log-status.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="mediadev.html#id-1.8.2">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="API-v4l2-ctrl-new-std.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span class="phrase">v4l2_ctrl_handler_log_status</span> </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> <span class="phrase">v4l2_ctrl_new_std</span></td></tr></table></div></body></html>
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