1<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>vb2_thread_start</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-struct-vb2-v4l2-buffer.html" title="struct vb2_v4l2_buffer"><link rel="next" href="API-vb2-thread-stop.html" title="vb2_thread_stop"></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">vb2_thread_start</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-struct-vb2-v4l2-buffer.html">Prev</a> </td><th width="60%" align="center">Video2Linux devices</th><td width="20%" align="right"> <a accesskey="n" href="API-vb2-thread-stop.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-vb2-thread-start"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>vb2_thread_start — 
2     start a thread for the given queue.
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">int <b class="fsfunc">vb2_thread_start </b>(</code></td><td><a class="link" href="API-struct-vb2-queue.html" title="struct vb2_queue">struct vb2_queue</a> * <var class="pdparam">q</var>, </td></tr><tr><td> </td><td>vb2_thread_fnc <var class="pdparam">fnc</var>, </td></tr><tr><td> </td><td>void * <var class="pdparam">priv</var>, </td></tr><tr><td> </td><td>const char * <var class="pdparam">thread_name</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1"><a name="id-1.8.2.105.5"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>q</code></em></span></dt><dd><p>
4     videobuf queue
5    </p></dd><dt><span class="term"><em class="parameter"><code>fnc</code></em></span></dt><dd><p>
6     callback function
7    </p></dd><dt><span class="term"><em class="parameter"><code>priv</code></em></span></dt><dd><p>
8     priv pointer passed to the callback function
9    </p></dd><dt><span class="term"><em class="parameter"><code>thread_name</code></em></span></dt><dd><p>
10     the name of the thread. This will be prefixed with <span class="quote">“<span class="quote">vb2-</span>”</span>.
11    </p></dd></dl></div></div><div class="refsect1"><a name="id-1.8.2.105.6"></a><h2>Description</h2><p>
12   This starts a thread that will queue and dequeue until an error occurs
13   or <em class="parameter"><code>vb2_thread_stop</code></em> is called.
14   </p><p>
15
16   This function should not be used for anything else but the videobuf2-dvb
17   support. If you think you have another good use-case for this, then please
18   contact the linux-media mailinglist first.
19</p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="API-struct-vb2-v4l2-buffer.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-vb2-thread-stop.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span class="phrase">struct vb2_v4l2_buffer</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">vb2_thread_stop</span></td></tr></table></div></body></html>
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