1<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>Frontend Function Calls</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="dvb_frontend.html" title="Chapter 9. DVB Frontend API"><link rel="prev" href="frontend-properties.html" title="DVB Frontend properties"><link rel="next" href="frontend_f_open.html" title="DVB frontend open()"></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">Frontend Function Calls</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="frontend-properties.html">Prev</a> </td><th width="60%" align="center">Chapter 9. DVB Frontend API</th><td width="20%" align="right"> <a accesskey="n" href="frontend_f_open.html">Next</a></td></tr></table><hr></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="frontend_fcalls"></a>Frontend Function Calls</h2></div></div></div><div class="toc"><dl class="toc"><dt><span class="refentrytitle"><a href="frontend_f_open.html">DVB frontend open()</a></span><span class="refpurpose"> — Open a frontend device</span></dt><dt><span class="refentrytitle"><a href="frontend_f_close.html">DVB frontend close()</a></span><span class="refpurpose"> — Close a frontend device</span></dt><dt><span class="refentrytitle"><a href="FE_GET_INFO.html">ioctl FE_GET_INFO</a></span><span class="refpurpose"> — Query DVB frontend capabilities and returns information about 2 the front-end. This call only requires read-only access to the device</span></dt><dt><span class="refentrytitle"><a href="FE_READ_STATUS.html">ioctl FE_READ_STATUS</a></span><span class="refpurpose"> — Returns status information about the front-end. This call only 3 requires read-only access to the device</span></dt><dt><span class="refentrytitle"><a href="FE_GET_PROPERTY.html">ioctl FE_SET_PROPERTY, FE_GET_PROPERTY</a></span><span class="refpurpose"> — FE_SET_PROPERTY sets one or more frontend properties. 4 FE_GET_PROPERTY returns one or more frontend properties.</span></dt><dt><span class="refentrytitle"><a href="FE_DISEQC_RESET_OVERLOAD.html">ioctl FE_DISEQC_RESET_OVERLOAD</a></span><span class="refpurpose"> — Restores the power to the antenna subsystem, if it was powered 5 off due to power overload.</span></dt><dt><span class="refentrytitle"><a href="FE_DISEQC_SEND_MASTER_CMD.html">ioctl FE_DISEQC_SEND_MASTER_CMD</a></span><span class="refpurpose"> — Sends a DiSEqC command</span></dt><dt><span class="refentrytitle"><a href="FE_DISEQC_RECV_SLAVE_REPLY.html">ioctl FE_DISEQC_RECV_SLAVE_REPLY</a></span><span class="refpurpose"> — Receives reply from a DiSEqC 2.0 command</span></dt><dt><span class="refentrytitle"><a href="FE_DISEQC_SEND_BURST.html">ioctl FE_DISEQC_SEND_BURST</a></span><span class="refpurpose"> — Sends a 22KHz tone burst for 2x1 mini DiSEqC satellite selection.</span></dt><dt><span class="refentrytitle"><a href="FE_SET_TONE.html">ioctl FE_SET_TONE</a></span><span class="refpurpose"> — Sets/resets the generation of the continuous 22kHz tone.</span></dt><dt><span class="refentrytitle"><a href="FE_SET_VOLTAGE.html">ioctl FE_SET_VOLTAGE</a></span><span class="refpurpose"> — Allow setting the DC level sent to the antenna subsystem.</span></dt><dt><span class="refentrytitle"><a href="FE_ENABLE_HIGH_LNB_VOLTAGE.html">ioctl FE_ENABLE_HIGH_LNB_VOLTAGE</a></span><span class="refpurpose"> — Select output DC level between normal LNBf voltages or higher 6 LNBf voltages.</span></dt><dt><span class="refentrytitle"><a href="FE_SET_FRONTEND_TUNE_MODE.html">ioctl FE_SET_FRONTEND_TUNE_MODE</a></span><span class="refpurpose"> — Allow setting tuner mode flags to the frontend.</span></dt></dl></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="frontend-properties.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="dvb_frontend.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="frontend_f_open.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">DVB Frontend properties </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> DVB frontend open()</td></tr></table></div></body></html> 7