1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>parport_negotiate</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="parportdev.html" title="Chapter&#160;3.&#160;Parallel Port Devices"><link rel="prev" href="API-parport-wait-peripheral.html" title="parport_wait_peripheral"><link rel="next" href="API-parport-write.html" title="parport_write"></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">parport_negotiate</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-parport-wait-peripheral.html">Prev</a>&#160;</td><th width="60%" align="center">Chapter&#160;3.&#160;Parallel Port Devices</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-parport-write.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-parport-negotiate"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>parport_negotiate &#8212; 
2     negotiate an IEEE 1284 mode
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">parport_negotiate </b>(</code></td><td>struct parport * <var class="pdparam">port</var>, </td></tr><tr><td>&#160;</td><td>int <var class="pdparam">mode</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1110928372"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>port</code></em></span></dt><dd><p>
4     port to use
5    </p></dd><dt><span class="term"><em class="parameter"><code>mode</code></em></span></dt><dd><p>
6     mode to negotiate to
7    </p></dd></dl></div></div><div class="refsect1"><a name="idp1110931004"></a><h2>Description</h2><p>
8   Use this to negotiate to a particular IEEE 1284 transfer mode.
9   The <em class="parameter"><code>mode</code></em> parameter should be one of the constants in
10   parport.h starting <code class="constant">IEEE1284_MODE_xxx</code>.
11   </p><p>
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13   The return value is 0 if the peripheral has accepted the
14   negotiation to the mode specified, -1 if the peripheral is not
15   IEEE 1284 compliant (or not present), or 1 if the peripheral
16   has rejected the negotiation.
17</p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="API-parport-wait-peripheral.html">Prev</a>&#160;</td><td width="20%" align="center"><a accesskey="u" href="parportdev.html">Up</a></td><td width="40%" align="right">&#160;<a accesskey="n" href="API-parport-write.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span class="phrase">parport_wait_peripheral</span>&#160;</td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top">&#160;<span class="phrase">parport_write</span></td></tr></table></div></body></html>
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