1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>struct i2c_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 10. I2C and SMBus Subsystem"><link rel="prev" href="API-struct-i2c-driver.html" title="struct i2c_driver"><link rel="next" href="API-struct-i2c-board-info.html" title="struct i2c_board_info"></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">struct i2c_client</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-struct-i2c-driver.html">Prev</a> </td><th width="60%" align="center">Chapter 10. I<sup>2</sup>C and SMBus Subsystem</th><td width="20%" align="right"> <a accesskey="n" href="API-struct-i2c-board-info.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-struct-i2c-client"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>struct i2c_client — 2 represent an I2C slave device 3 </p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="programlisting"> 4struct i2c_client { 5 unsigned short flags; 6 unsigned short addr; 7 char name[I2C_NAME_SIZE]; 8 struct i2c_adapter * adapter; 9 struct device dev; 10 int irq; 11 struct list_head detected; 12#if IS_ENABLED(CONFIG_I2C_SLAVE) 13 i2c_slave_cb_t slave_cb; 14#endif 15}; </pre></div><div class="refsect1"><a name="idp1115245564"></a><h2>Members</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term">flags</span></dt><dd><p> 16 I2C_CLIENT_TEN indicates the device uses a ten bit chip address; 17 I2C_CLIENT_PEC indicates it uses SMBus Packet Error Checking 18 </p></dd><dt><span class="term">addr</span></dt><dd><p> 19 Address used on the I2C bus connected to the parent adapter. 20 </p></dd><dt><span class="term">name[I2C_NAME_SIZE]</span></dt><dd><p> 21 Indicates the type of the device, usually a chip name that's 22 generic enough to hide second-sourcing and compatible revisions. 23 </p></dd><dt><span class="term">adapter</span></dt><dd><p> 24 manages the bus segment hosting this I2C device 25 </p></dd><dt><span class="term">dev</span></dt><dd><p> 26 Driver model device node for the slave. 27 </p></dd><dt><span class="term">irq</span></dt><dd><p> 28 indicates the IRQ generated by this device (if any) 29 </p></dd><dt><span class="term">detected</span></dt><dd><p> 30 member of an i2c_driver.clients list or i2c-core's 31 userspace_devices list 32 </p></dd><dt><span class="term">slave_cb</span></dt><dd><p> 33 Callback when I2C slave mode of an adapter is used. The adapter 34 calls it to pass on slave events to the slave driver. 35 </p></dd></dl></div></div><div class="refsect1"><a name="idp1115252172"></a><h2>Description</h2><p> 36 An i2c_client identifies a single device (i.e. chip) connected to an 37 i2c bus. The behaviour exposed to Linux is defined by the driver 38 managing the device. 39</p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="API-struct-i2c-driver.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="i2c.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="API-struct-i2c-board-info.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span class="phrase">struct i2c_driver</span> </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> <span class="phrase">struct i2c_board_info</span></td></tr></table></div></body></html> 40