--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Symbian3/PDK/Source/GUID-C98DF912-A903-4FDB-B27A-CC8E75E3E40F.dita	Tue Mar 30 11:56:28 2010 +0100
@@ -0,0 +1,25 @@
+<?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-C98DF912-A903-4FDB-B27A-CC8E75E3E40F" xml:lang="en"><title>The
+Logical Channel</title><shortdesc>This document describes how device driver code is accessed through
+a logical channel.</shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>
+<section id="GUID-62823FF9-984A-4A28-9E8E-98C7033C34B9">    
+     <p>All interaction between user code and the driver code takes place
+through a logical channel. On the user side, a channel is encapsulated by
+a <codeph>RBusLogicalChannel</codeph> derived class; on the Kernel side, a
+channel is encapsulated by a <codeph>DLogicalChannelBase</codeph> or a <codeph>DLogicalChannel</codeph> derived
+class, constructed by the <codeph>DLogicalDevice</codeph> factory object. </p> <fig id="GUID-E27A3A17-366D-5551-A26E-FC8E0853D72A">
+<title>                 Device driver logical channel classes            
+  </title>
+<image href="GUID-F4E04E00-D9C6-5E8F-9EC6-F90BC951D4D0_d0e293457_href.png" placement="inline"/>
+</fig>     </section>
+</conbody></concept>
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