92 lines
3.1 KiB
HTML
92 lines
3.1 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<head>
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<meta name="generator" content=
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"HTML Tidy for Linux/x86 (vers 1 September 2005), see www.w3.org">
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<meta http-equiv="Content-Type" content=
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"text/html; charset=us-ascii">
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<title>Appendix F. i2c Bus Support</title>
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<meta name="generator" content="DocBook XSL Stylesheets V1.68.1">
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<link rel="start" href="index.html" title=
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"NVIDIA Accelerated Linux Graphics Driver README and Installation Guide">
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<link rel="up" href="appendices.html" title=
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"Part II. Appendices">
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<link rel="prev" href="dpi.html" title=
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"Appendix E. Dots Per Inch">
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<link rel="next" href="vdpausupport.html" title=
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"Appendix G. VDPAU Support">
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</head>
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<body>
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<div class="navheader">
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<table width="100%" summary="Navigation header">
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<tr>
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<th colspan="3" align="center">Appendix F. i2c Bus
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Support</th>
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</tr>
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<tr>
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<td width="20%" align="left"><a accesskey="p" href=
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"dpi.html">Prev</a> </td>
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<th width="60%" align="center">Part II. Appendices</th>
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<td width="20%" align="right"> <a accesskey="n" href=
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"vdpausupport.html">Next</a></td>
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</tr>
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</table>
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<hr></div>
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<div class="appendix" lang="en">
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<div class="titlepage">
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<div>
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<div>
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<h2 class="title"><a name="i2c" id=
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"i2c"></a>Appendix F. i2c Bus Support</h2>
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</div>
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</div>
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</div>
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<p>The NVIDIA Linux kernel module now includes i2c (also called
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I-squared-c, Inter-IC Communications, or IIC) functionality that
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allows the NVIDIA Linux kernel module to export i2c ports found on
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board NVIDIA cards to the Linux kernel. This allows i2c devices
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on-board the NVIDIA graphics card, as well as devices connected to
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the VGA and/or DVI ports, to be accessed from kernel modules or
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userspace programs in a manner consistent with other i2c ports
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exported by the Linux kernel through the i2c framework.</p>
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<p>You must have i2c support compiled into the kernel, or as a
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module, and X must be running. The Linux kernel documentation
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covers the kernel and userspace /dev APIs, which you may wish to
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use to access NVIDIA i2c ports.</p>
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<p>For further information regarding the Linux kernel's i2c
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framework, refer to the documentation for your kernel, located at
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.../Documentation/i2c/ within the kernel source tree.</p>
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<p>The following functionality is currently supported:</p>
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<pre class="screen">
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I2C_FUNC_I2C
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I2C_FUNC_SMBUS_QUICK
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I2C_FUNC_SMBUS_BYTE
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I2C_FUNC_SMBUS_BYTE_DATA
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I2C_FUNC_SMBUS_WORD_DATA
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</pre>
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<p></p>
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</div>
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<div class="navfooter">
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<hr>
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<table width="100%" summary="Navigation footer">
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<tr>
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<td width="40%" align="left"><a accesskey="p" href=
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"dpi.html">Prev</a> </td>
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<td width="20%" align="center"><a accesskey="u" href=
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"appendices.html">Up</a></td>
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</tr>
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<tr>
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<td width="40%" align="left" valign="top">
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Appendix E. Dots Per Inch </td>
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<td width="20%" align="center"><a accesskey="h" href=
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"index.html">Home</a></td>
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<td width="40%" align="right" valign="top">
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Appendix G. VDPAU Support</td>
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</tr>
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</table>
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</div>
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</body>
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</html>
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