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Adaptation/GUID-2559E3F7-314B-5DCC-A7FE-A08162A89721.dita
changeset 15 307f4279f433 
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Adaptation/GUID-2559E3F7-314B-5DCC-A7FE-A08162A89721.dita	Fri Oct 15 14:32:18 2010 +0100
@@ -0,0 +1,56 @@
+<?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-2559E3F7-314B-5DCC-A7FE-A08162A89721" xml:lang="en"><title>Local
+Media Subsystem Overview</title><shortdesc>Provides the logical device driver for the internal and removable
+storage media on a phone. </shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>
+<section id="GUID-F7C4ED03-1A25-4F13-8B48-8A5463510422"><title>Purpose</title> <p>The local media sub-system allows the Symbian
+platform file system and other programs to communicate with local media devices. </p> </section>
+<section id="GUID-80F9C844-882C-4EA4-85C4-58D62C11685A"><title>Required background</title> <p>The local media sub-system
+requires an understanding of the Symbian platform file system and local media
+devices. </p> </section>
+<section id="GUID-E70E10E5-2676-4C0F-B28B-060F823DECCF"><title>Key concepts and terms</title> <dl>
+<dlentry>
+<dt>local drive</dt>
+<dd><p>A media drive mounted within the phone. </p> </dd>
+</dlentry>
+</dl> </section>
+<section id="GUID-08F96B25-71FA-4A62-A77B-5076F509AE23"><title>Architecture</title> <p>The <xref href="GUID-32659A02-6541-3D15-AB88-B70FBD7DF9B0.dita"><apiname>TBusLocalDrive</apiname></xref> class
+provides an interface to the local media sub-system. Each instance of this
+class represents a channel of communication with a local drive. To establish
+a channel a client connects an instance of the class to a specified drive.
+The file server contains 16 instances of <xref href="GUID-32659A02-6541-3D15-AB88-B70FBD7DF9B0.dita"><apiname>TBusLocalDrive</apiname></xref>,
+one for each local drive. Programs other than the file server may also create
+instances to access a local drive. Drives are abstracted by the <xref href="GUID-2E1AEAC0-CEDF-31A5-B36A-FC4749B979A5.dita"><apiname>TDrive</apiname></xref> class. </p> </section>
+<section id="GUID-3495E8DD-C6AA-47D3-A64F-4431C2A90850"><title>Local Media Sub-system Summary</title> <p>The local media
+subsystem provides the following: </p> <ul>
+<li id="GUID-79E68BE5-9713-5E24-B3C6-D0123CD13056"><p> <b>Local media LDD</b>  </p> <p> <filepath>elocd.ldd</filepath>  </p> <p>The
+kernel-side logical device driver which implements communication between physical
+devices and applications which use them. </p> </li>
+</ul> </section>
+<section id="GUID-74061F49-2659-47D1-9DB8-2FF3CB10B2E8"><title>Typical uses</title> <p>The <xref href="GUID-32659A02-6541-3D15-AB88-B70FBD7DF9B0.dita"><apiname>TBusLocalDrive</apiname></xref> class
+is used to connect to and disconnect from local drives, to read to and write
+from them, to provide information about the capabilities of the drives, to
+format them, and to mount and remount drives on specified media drivers. </p> <p>Local
+media subsystem: </p> <ul>
+<li id="GUID-1A411257-57A7-5206-AE12-811B5F71727A"><p>Manages device connections </p> </li>
+<li id="GUID-74C8A86A-D797-5473-8192-A4EA6DE1C8B0"><p>Manages data transfer </p> </li>
+<li id="GUID-5D62718F-3B7F-5D0E-9B95-BDA2C1FB77D3"><p>Handles notifications
+and device configuration. </p> </li>
+</ul> </section>
+</conbody><related-links>
+<link href="GUID-F3BD37EC-0CCB-5859-908F-215E22C9FC20.dita#GUID-F3BD37EC-0CCB-5859-908F-215E22C9FC20/GUID-143780ED-4A23-5E72-A923-F605172EC8B5">
+<linktext>File Server</linktext></link>
+<link href="GUID-6CF2F4EF-383F-5850-A522-F425A83AA89E.dita#GUID-6CF2F4EF-383F-5850-A522-F425A83AA89E/GUID-20E09BC9-35CA-594A-BA91-D8D0C928FD98">
+<linktext>File Systems</linktext></link>
+<link href="GUID-9540A82E-F83D-55F5-B441-868CF77468E9.dita#GUID-9540A82E-F83D-55F5-B441-868CF77468E9/GUID-CFED15B1-E768-534E-9043-7AADE45EE9AF">
+<linktext>Media Drivers</linktext></link>
+</related-links></concept>
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MCL/sftools/depl/docscontent