Symbian3/PDK/Source/GUID-461A9DAD-1C1D-537D-A7A7-9E1AF33ABBA2.dita
author Dominic Pinkman <Dominic.Pinkman@Nokia.com>
Thu, 11 Mar 2010 18:02:22 +0000
changeset 3 46218c8b8afa
parent 1 25a17d01db0c
permissions -rw-r--r--
week 10 bug fix submission (SF PDK version): Bug 1892, Bug 1897, Bug 1319. Also 3 or 4 documents were found to contain code blocks with SFL, which has been fixed. Partial fix for broken links, links to Forum Nokia, and the 'Symbian platform' terminology issues.
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<?xml version="1.0" encoding="utf-8"?>
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<!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. -->
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<!-- This component and the accompanying materials are made available under the terms of the License 
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"Eclipse Public License v1.0" which accompanies this distribution, 
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and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". -->
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<!-- Initial Contributors:
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    Nokia Corporation - initial contribution.
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Contributors: 
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-->
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<!DOCTYPE concept
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  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
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<concept id="GUID-461A9DAD-1C1D-537D-A7A7-9E1AF33ABBA2" xml:lang="en"><title>The
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Physical Channel</title><shortdesc>The physical channel defines the interface between the logical
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device and the physical device. It is an instance of a class derived from <apiname>DBase</apiname>.</shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>
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<p> It is analogous to the logical channel. Unlike the logical channel, which
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must be derived from <xref href="GUID-E7550422-5121-3393-A85E-BB797969CD2A.dita"><apiname>DLogicalChannelBase</apiname></xref>, or from <xref href="GUID-A3CC1D95-4681-3349-A67C-F113A614041D.dita"><apiname>DLogicalChannel</apiname></xref>,
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and must conform to a globally defined interface, the physical channel interface
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is determined only by the LDD with which it is used. This means that we cannot
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make any general recommendation as to the structure, and detailed behaviour
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of the physical channel. </p>
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<p>However, a physical channel is used by the <xref href="GUID-9496B02E-D698-5C74-A8BE-3600AD56BBB3.dita">Simple
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Example Device Driver</xref>, and is a good example of how a physical channel
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is implemented. </p>
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</conbody></concept>