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+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. -->
+<!-- This component and the accompanying materials are made available under the terms of the License 
+"Eclipse Public License v1.0" which accompanies this distribution, 
+and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". -->
+<!-- Initial Contributors:
+    Nokia Corporation - initial contribution.
+Contributors: 
+-->
+<!DOCTYPE concept
+  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<concept id="GUID-A3A3405C-C89C-5079-85CE-8CB069C8E0C0" xml:lang="en"><title>IIC Client Interface Quickstart</title><shortdesc>This document gives a brief overview of the IIC client
+interface API. </shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>
+<section id="GUID-969E5E79-1CCE-45DD-B243-734E446B490A"><title>Purpose</title> <p>The IIC client interface API creates a common interface from
+device drivers to serial inter-IC buses (IIC buses). </p> <p><b>Intended
+audience</b> </p> <p>This document is intended to be used by device
+driver writers. </p> </section>
+<section id="GUID-921BEB8B-C943-483D-BB67-15E1042F9F5F"><title>Architectural
+relationship</title> <p>The IIC client interface API is part of a
+group of APIs which provide a common, hardware-independent, interface
+from kernel to different hardware. Other APIs of this type include
+GPIO.</p> <p><b>Description</b> </p> <p>Physically, a bus represented
+by IIC is accessed over a node. The IIC client interface API wraps
+a node in a software construct called a channel. It provides functionality
+for creating and accessing channels directly. There are two possible
+modes of operation:</p><ul>
+<li><p>Controller</p><p>Where the device drivers that use the IIC
+client interface API can access different IIC channels.</p></li>
+<li><p>Controller-less</p><p>Where the channels that the device driver
+can access are set at compile time.</p></li>
+</ul><p>Furthermore, there are three possible channel behaviors: </p><ul>
+<li><p>Master</p><p>The device driver initializes the data transfer.</p></li>
+<li><p>Slave</p><p>The device driver carries out a data transfer that
+is controlled by another node attached to the bus.</p></li>
+<li><p>MasterSlave</p><p>The device driver can carry out both roles.</p></li>
+</ul> </section>
+<section id="GUID-0F84B972-8260-4373-9F1F-F068AA356F4F"><title>IIC
+classes</title> <p>If the access to the IIC bus is to be via a controller,
+then the IIC platform service API class to use is:</p><ul>
+<li id="GUID-3D3B2AFB-4451-5FCD-98B7-7090DD2D9943"><p> <xref href="GUID-69949E47-8FDF-3651-BEEF-43726EBEB5FF.dita"><apiname>IicBus</apiname></xref>  </p> </li>
+</ul> <p>If the access to the IIC bus is to be without a controller
+(controller-less operation), then the IIC platform service API classes
+to use are:</p><ul>
+<li id="GUID-209C4026-156C-5887-AA8C-98C378E04558"><p> <xref href="GUID-FA3881ED-B736-34EB-8F1F-026BE1602B1B.dita"><apiname>DIicBusChannelMaster</apiname></xref>  </p> </li>
+<li id="GUID-9D8474E8-9274-5602-AC32-C040BF6EE15D"><p> <xref href="GUID-22FF70C1-A805-3EBB-B142-15FD16D00837.dita"><apiname>DIicBusChannelSlave</apiname></xref>  </p> </li>
+<li><p><xref href="GUID-26DBC836-03F1-31C4-BBFF-1F406E2BAEDB.dita"><apiname>DIicBusChannelMasterSlave</apiname></xref></p></li>
+</ul> </section>
+</conbody><related-links>
+<link href="GUID-9986DCC6-EE73-59FB-BDAC-9B09DC64FBCE.dita"><linktext>Client
+of Master Channel Tutorial</linktext></link>
+<link href="GUID-F461CBB3-F8D1-5961-AD51-5741143A1CB1.dita"><linktext>Client
+of Slave Channel Tutorial</linktext></link>
+</related-links></concept>
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