1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>phy_write_mmd_indirect</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="Linux Networking and Network Devices APIs"><link rel="up" href="ch02s02.html" title="PHY Support"><link rel="prev" href="API-phy-read-mmd-indirect.html" title="phy_read_mmd_indirect"><link rel="next" href="API-phy-init-eee.html" title="phy_init_eee"></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">phy_write_mmd_indirect</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-phy-read-mmd-indirect.html">Prev</a>&#160;</td><th width="60%" align="center">PHY Support</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-phy-init-eee.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-phy-write-mmd-indirect"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>phy_write_mmd_indirect &#8212; 
2     writes data to the MMD registers
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">void <b class="fsfunc">phy_write_mmd_indirect </b>(</code></td><td>struct phy_device * <var class="pdparam">phydev</var>, </td></tr><tr><td>&#160;</td><td>int <var class="pdparam">prtad</var>, </td></tr><tr><td>&#160;</td><td>int <var class="pdparam">devad</var>, </td></tr><tr><td>&#160;</td><td>int <var class="pdparam">addr</var>, </td></tr><tr><td>&#160;</td><td>u32 <var class="pdparam">data</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1099096180"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>phydev</code></em></span></dt><dd><p>
4     The PHY device
5    </p></dd><dt><span class="term"><em class="parameter"><code>prtad</code></em></span></dt><dd><p>
6     MMD Address
7    </p></dd><dt><span class="term"><em class="parameter"><code>devad</code></em></span></dt><dd><p>
8     MMD DEVAD
9    </p></dd><dt><span class="term"><em class="parameter"><code>addr</code></em></span></dt><dd><p>
10     PHY address on the MII bus
11    </p></dd><dt><span class="term"><em class="parameter"><code>data</code></em></span></dt><dd><p>
12     data to write in the MMD register
13    </p></dd></dl></div></div><div class="refsect1"><a name="idp1099101892"></a><h2>Description</h2><p>
14   Write data from the MMD registers of the specified
15   phy address.
16</p></div><div class="refsect1"><a name="idp1099102564"></a><h2>To write these register we have</h2><p>
17   1) Write reg 13 // DEVAD
18   2) Write reg 14 // MMD Address
19   3) Write reg 13 // MMD Data Command for MMD DEVAD
20   3) Write reg 14 // Write MMD data
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