1 <?xml version="1.0" encoding="utf-8"?>

     2 <!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. -->

     3 <!-- This component and the accompanying materials are made available under the terms of the License 

     4 "Eclipse Public License v1.0" which accompanies this distribution, 

     5 and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". -->

     6 <!-- Initial Contributors:

     7     Nokia Corporation - initial contribution.

     8 Contributors: 

     9 -->

    10 <!DOCTYPE concept

    11   PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">

    12 <concept id="GUID-3D1A6C0B-A3E1-4E3C-80F1-C3C5CD1E3734" xml:lang="en"><title>GPIO

    13 Implementation</title><shortdesc>Explains the code you must write to allow users of the GPIO SHAI

    14 to access your hardware.</shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>

    15 <p>This section is provided to assist platform developers using the GPIO standard

    16 for communicating with a particular hardware component. It tells you what

    17 you need to know to produce the hardware specific implementation of the GPIO

    18 SHAI.</p>

    19 <p>You provide support for GPIO hardware by providing an implementation of

    20 the <xref href="GUID-C93C53D3-2BE8-36AE-83B8-4CDB4195649B.dita"><apiname>GPIO</apiname></xref> class which defines methods for pin mode, pin

    21 bias, debouncing, interrupts, getting and setting pin values and all other

    22 GPIO functionality that must be coded below the SHAI interface. </p>

    23 </conbody></concept>