1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>i2c_use_client</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="i2c.html" title="Chapter&#160;10.&#160;I2C and SMBus Subsystem"><link rel="prev" href="API-i2c-del-driver.html" title="i2c_del_driver"><link rel="next" href="API-i2c-release-client.html" title="i2c_release_client"></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">i2c_use_client</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-i2c-del-driver.html">Prev</a>&#160;</td><th width="60%" align="center">Chapter&#160;10.&#160;I<sup>2</sup>C and SMBus Subsystem</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-i2c-release-client.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-i2c-use-client"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>i2c_use_client &#8212; 
2     increments the reference count of the i2c client structure
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">struct i2c_client * <b class="fsfunc">i2c_use_client </b>(</code></td><td>struct i2c_client * <var class="pdparam">client</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1115422244"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>client</code></em></span></dt><dd><p>
4     the client being referenced
5    </p></dd></dl></div></div><div class="refsect1"><a name="idp1115423868"></a><h2>Description</h2><p>
6   Each live reference to a client should be refcounted. The driver model does
7   that automatically as part of driver binding, so that most drivers don't
8</p></div><div class="refsect1"><a name="idp1115424628"></a><h2>need to do this explicitly</h2><p>
9   they hold a reference until they're unbound
10   from the device.
11   </p><p>
12
13   A pointer to the client with the incremented reference counter is returned.
14</p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="API-i2c-del-driver.html">Prev</a>&#160;</td><td width="20%" align="center"><a accesskey="u" href="i2c.html">Up</a></td><td width="40%" align="right">&#160;<a accesskey="n" href="API-i2c-release-client.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span class="phrase">i2c_del_driver</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">i2c_release_client</span></td></tr></table></div></body></html>
15