1<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>ioctl NET_ADD_IF</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="LINUX MEDIA INFRASTRUCTURE API"><link rel="up" href="net.html#net_fcalls" title="DVB net Function Calls"><link rel="prev" href="net.html#net_fcalls" title="DVB net Function Calls"><link rel="next" href="NET_REMOVE_IF.html" title="ioctl NET_REMOVE_IF"></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">ioctl NET_ADD_IF</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="net.html#net_fcalls">Prev</a> </td><th width="60%" align="center">DVB net Function Calls</th><td width="20%" align="right"> <a accesskey="n" href="NET_REMOVE_IF.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="NET_ADD_IF"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>NET_ADD_IF — Creates a new network interface for a given Packet ID.</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">ioctl</b>(</code></td><td>int <var class="pdparam">fd</var>, </td></tr><tr><td> </td><td>int <var class="pdparam">request</var>, </td></tr><tr><td> </td><td>struct dvb_net_if *<var class="pdparam">net_if</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1"><a name="id-1.5.8.7.2.4"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>fd</code></em></span></dt><dd><p>File descriptor returned by <a class="link" href="frontend_f_open.html" title="DVB frontend open()"><code class="function">open()</code></a>.</p></dd><dt><span class="term"><em class="parameter"><code>request</code></em></span></dt><dd><p>FE_SET_TONE</p></dd><dt><span class="term"><em class="parameter"><code>net_if</code></em></span></dt><dd><p>pointer to struct <a class="link" href="NET_ADD_IF.html#dvb-net-if" title="Table 12.1. struct dvb_net_if">dvb_net_if</a></p></dd></dl></div></div><div class="refsect1"><a name="id-1.5.8.7.2.5"></a><h2>Description</h2><p>The NET_ADD_IF ioctl system call selects the Packet ID (PID) that 2 contains a TCP/IP traffic, the type of encapsulation to be used (MPE or ULE) 3 and the interface number for the new interface to be created. When the 4 system call successfully returns, a new virtual network interface is created.</p><p>The struct <a class="link" href="NET_ADD_IF.html#dvb-net-if" title="Table 12.1. struct dvb_net_if">dvb_net_if</a>::ifnum field will be filled with the number of the 5 created interface.</p><p>RETURN VALUE</p><p>On success <span class="returnvalue">0</span> is returned, on error <span class="returnvalue">-1</span> and the <code class="varname">errno</code> variable is set appropriately. The generic error codes are described at the <a class="link" href="gen_errors.html#gen-errors" title="Table 17.1. Generic error codes">Generic Error Codes</a> chapter.</p></div><div class="refsect1"><a name="dvb-net-if-t"></a><h2>struct <span class="structname">dvb_net_if</span> description</h2><div class="table"><a name="dvb-net-if"></a><p class="title"><b>Table 12.1. struct <span class="structname">dvb_net_if</span></b></p><div class="table-contents"><table summary="struct dvb_net_if" width="100%" border="0"><colgroup><col class="c1"><col class="c2"></colgroup><thead><tr><th>ID</th><th>Description</th></tr></thead><tbody valign="top"><tr><td align="char" valign="top">pid</td><td align="char" valign="top">Packet ID (PID) of the MPEG-TS that contains 6 data</td></tr><tr><td align="char" valign="top">ifnum</td><td align="char" valign="top">number of the DVB interface.</td></tr><tr><td align="char" valign="top">feedtype</td><td align="char" valign="top">Encapsulation type of the feed. It can be: 7 <code class="constant">DVB_NET_FEEDTYPE_MPE</code> for MPE encoding 8 or 9 <code class="constant">DVB_NET_FEEDTYPE_ULE</code> for ULE encoding. 10 </td></tr></tbody></table></div></div><br class="table-break"></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="net.html#net_fcalls">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="net.html#net_fcalls">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="NET_REMOVE_IF.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">DVB net Function Calls </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> ioctl NET_REMOVE_IF</td></tr></table></div></body></html> 11