delay the initialization of the button information:

 - faster startup for apps that are not accessing the HW buttons
 - the basic ODevice stuff is useable without a QApplication object

2 files changed, 70 insertions, 24 deletions

diff --git a/libopie/odevice.cpp b/libopie/odevice.cpp
index 80975c9..377945d 100644
--- a/libopie/odevice.cpp
+++ b/libopie/odevice.cpp
@@ -1,1216 +1,1261 @@
 /*  This file is part of the OPIE libraries
     Copyright (C) 2002 Robert Griebl (sandman@handhelds.org)
 
     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Library General Public
     License as published by the Free Software Foundation; either
     version 2 of the License, or (at your option) any later version.
 
     This library is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     Library General Public License for more details.
 
     You should have received a copy of the GNU Library General Public License
     along with this library; see the file COPYING.LIB.  If not, write to
     the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
     Boston, MA 02111-1307, USA.
 */
 
 #include <stdlib.h>
 #include <unistd.h>
 #include <fcntl.h>
 #include <sys/ioctl.h>
 #include <signal.h>
 #include <sys/time.h>
 #include <linux/soundcard.h>
 #include <math.h>
 
 #include <qapplication.h>
 
 #include <qfile.h>
 #include <qtextstream.h>
 #include <qpe/sound.h>
 #include <qpe/resource.h>
 #include <qpe/config.h>
 #include <qpe/qcopenvelope_qws.h>
 
 #include "odevice.h"
 
 #include <qwindowsystem_qws.h>
 
 
 // _IO and friends are only defined in kernel headers ...
 
 #define OD_IOC(dir,type,number,size)    (( dir << 30 ) | ( type << 8 ) | ( number ) | ( size << 16 ))
 
 #define OD_IO(type,number)              OD_IOC(0,type,number,0)
 #define OD_IOW(type,number,size)        OD_IOC(1,type,number,sizeof(size))
 #define OD_IOR(type,number,size)        OD_IOC(2,type,number,sizeof(size))
 #define OD_IORW(type,number,size)       OD_IOC(3,type,number,sizeof(size))
 
 using namespace Opie;
 
 class ODeviceData {
 public:
         bool m_qwsserver;
 
         QString m_vendorstr;
         OVendor m_vendor;
         
         QString m_modelstr;
         OModel m_model;
 
         QString m_systemstr;
         OSystem m_system;
         
         QString m_sysverstr;
 
         Transformation m_rotation;
         
-        QValueList <ODeviceButton> m_buttons;
-        uint                       m_holdtime;
+        QValueList <ODeviceButton> *m_buttons;
+        uint                        m_holdtime;
 };
 
 
 class iPAQ : public ODevice, public QWSServer::KeyboardFilter {
 protected: 
         virtual void init ( );
+        virtual void initButtons ( );
         
 public:
         virtual bool setSoftSuspend ( bool soft );
 
         virtual bool setDisplayBrightness ( int b );
         virtual int displayBrightnessResolution ( ) const;
 
         virtual void alarmSound ( );
         
     virtual QValueList <OLed> ledList ( ) const;
         virtual QValueList <OLedState> ledStateList ( OLed led ) const;
         virtual OLedState ledState ( OLed led ) const;
         virtual bool setLedState ( OLed led, OLedState st );
 
         virtual bool hasLightSensor ( ) const;
         virtual int readLightSensor ( );
         virtual int lightSensorResolution ( ) const;
         
 protected:
         virtual bool filter ( int unicode, int keycode, int modifiers, bool isPress, bool autoRepeat );
         virtual void timerEvent ( QTimerEvent *te );
         
         int m_power_timer;
         
         OLedState m_leds [2];
 };
 
 class Zaurus : public ODevice {
 protected:
         virtual void init ( );
+        virtual void initButtons ( );
 
         public:
         virtual bool setSoftSuspend ( bool soft );
 
         virtual bool setDisplayBrightness ( int b );
         virtual int displayBrightnessResolution ( ) const;
 
         virtual void alarmSound ( );
         virtual void keySound ( );
                 virtual void touchSound ( );
 
     virtual QValueList <OLed> ledList ( ) const;
         virtual QValueList <OLedState> ledStateList ( OLed led ) const;
         virtual OLedState ledState ( OLed led ) const;
         virtual bool setLedState ( OLed led, OLedState st );
         
 protected:
         virtual void buzzer ( int snd );
         
         OLedState m_leds [1];
 };
 
 
 struct i_button {
         uint model;
     Qt::Key code;
     char *utext;
     char *pix;
     char *fpressedservice;
     char *fpressedaction;
     char *fheldservice;
     char *fheldaction;
 } ipaq_buttons [] = {
     { Model_iPAQ_H31xx | Model_iPAQ_H36xx | Model_iPAQ_H37xx | Model_iPAQ_H38xx | Model_iPAQ_H39xx, 
     Qt::Key_F9, QT_TRANSLATE_NOOP("Button", "Calendar Button"), 
         "devicebuttons/ipaq_calendar", 
         "datebook", "nextView()", 
         "today", "raise()" },
     { Model_iPAQ_H31xx | Model_iPAQ_H36xx | Model_iPAQ_H37xx | Model_iPAQ_H38xx | Model_iPAQ_H39xx,
     Qt::Key_F10, QT_TRANSLATE_NOOP("Button", "Contacts Button"), 
         "devicebuttons/ipaq_contact",  
         "addressbook", "raise()",
         "addressbook", "beamBusinessCard()" },
     { Model_iPAQ_H31xx | Model_iPAQ_H36xx | Model_iPAQ_H37xx, 
     Qt::Key_F11, QT_TRANSLATE_NOOP("Button", "Menu Button"), 
         "devicebuttons/ipaq_menu",
          "QPE/TaskBar", "toggleMenu()",
         "QPE/TaskBar", "toggleStartMenu()" },
     { Model_iPAQ_H38xx | Model_iPAQ_H39xx,
     Qt::Key_F13, QT_TRANSLATE_NOOP("Button", "Mail Button"), 
         "devicebuttons/ipaq_mail",
         "mail", "raise()",
         "mail", "newMail()" },
     { Model_iPAQ_H31xx | Model_iPAQ_H36xx | Model_iPAQ_H37xx | Model_iPAQ_H38xx | Model_iPAQ_H39xx,
     Qt::Key_F12, QT_TRANSLATE_NOOP("Button", "Home Button"), 
         "devicebuttons/ipaq_home", 
         "QPE/Launcher", "home()",
         "buttonsettings", "raise()" },
     { Model_iPAQ_H31xx | Model_iPAQ_H36xx | Model_iPAQ_H37xx | Model_iPAQ_H38xx | Model_iPAQ_H39xx,
     Qt::Key_F24, QT_TRANSLATE_NOOP("Button", "Record Button"), 
         "devicebuttons/ipaq_record", 
         "QPE/VMemo", "toggleRecord()",
         "sound", "raise()" },
 };
 
 struct z_button {
     Qt::Key code;
     char *utext;
     char *pix;
     char *fpressedservice;
     char *fpressedaction;
     char *fheldservice;
     char *fheldaction;
 } z_buttons [] = {
     { Qt::Key_F9, QT_TRANSLATE_NOOP("Button", "Calendar Button"),
         "devicebuttons/z_calendar",
         "datebook", "nextView()",
         "today", "raise()" },
     { Qt::Key_F10, QT_TRANSLATE_NOOP("Button", "Contacts Button"),
         "devicebuttons/z_contact",
         "addressbook", "raise()",
         "addressbook", "beamBusinessCard()" },
     { Qt::Key_F12, QT_TRANSLATE_NOOP("Button", "Home Button"),
         "devicebuttons/z_home",
         "QPE/Launcher", "home()",
         "buttonsettings", "raise()" },
     { Qt::Key_F11, QT_TRANSLATE_NOOP("Button", "Menu Button"),
         "devicebuttons/z_menu",
          "QPE/TaskBar", "toggleMenu()",
         "QPE/TaskBar", "toggleStartMenu()" },
     { Qt::Key_F13, QT_TRANSLATE_NOOP("Button", "Mail Button"),
         "devicebuttons/z_mail",
         "mail", "raise()",
         "mail", "newMail()" },
 };
 
 static QCString makeChannel ( const char *str )
 {
         if ( str && !::strchr ( str, '/' ))
                 return QCString ( "QPE/Application/" ) + str;
         else
                 return str;
 }
 
 
 
 
 ODevice *ODevice::inst ( )
 {
         static ODevice *dev = 0;
         
         if ( !dev ) {
                 if ( QFile::exists ( "/proc/hal/model" ))
                         dev = new iPAQ ( );
                 else if ( QFile::exists ( "/dev/sharp_buz" ) || QFile::exists ( "/dev/sharp_led" ))
                         dev = new Zaurus ( );
                 else
                         dev = new ODevice ( );
                         
                 dev-> init ( );
         }
         return dev;
 }
 
 
 /**************************************************
  *
  * common
  *
  **************************************************/
 
 
 ODevice::ODevice ( )
 {
         d = new ODeviceData;
 
         d-> m_qwsserver = qApp ? ( qApp-> type ( ) == QApplication::GuiServer ) : false;
 
         d-> m_modelstr = "Unknown";
         d-> m_model = Model_Unknown;
         d-> m_vendorstr = "Unknown";
         d-> m_vendor = Vendor_Unknown;
         d-> m_systemstr = "Unknown";
         d-> m_system = System_Unknown;
         d-> m_sysverstr = "0.0";
         d-> m_rotation = Rot0;
         
         d-> m_holdtime = 1000; // 1000ms
-        
-        QCopChannel *sysch = new QCopChannel ( "QPE/System", this );
-                connect ( sysch, SIGNAL( received( const QCString &, const QByteArray & )), this, SLOT( systemMessage ( const QCString &, const QByteArray & )));                            
+        d-> m_buttons = 0;
 }
 
 void ODevice::systemMessage ( const QCString &msg, const QByteArray & )
 {
         if ( msg == "deviceButtonMappingChanged()" ) {
                 reloadButtonMapping ( );
         } 
 }
 
 void ODevice::init ( )
 {
+}
+
+void ODevice::initButtons ( )
+{
+        if ( d-> m_buttons )
+                return;
+
         // Simulation uses iPAQ 3660 device buttons
 
+        qDebug ( "init Buttons" );
+        d-> m_buttons = new QValueList <ODeviceButton>;
+
         for ( uint i = 0; i < ( sizeof( ipaq_buttons ) / sizeof( i_button )); i++ ) {
                         i_button *ib = ipaq_buttons + i;
                 ODeviceButton b;
                 
                         if (( ib-> model & Model_iPAQ_H36xx ) == Model_iPAQ_H36xx ) {   
                         b. setKeycode ( ib-> code );
                         b. setUserText ( QObject::tr ( "Button", ib-> utext ));
                         b. setPixmap ( Resource::loadPixmap ( ib-> pix ));
                         b. setFactoryPresetPressedAction ( OQCopMessage ( makeChannel ( ib-> fpressedservice ), ib-> fpressedaction ));
                         b. setFactoryPresetHeldAction ( OQCopMessage ( makeChannel ( ib-> fheldservice ), ib-> fheldaction ));
-                        d-> m_buttons. append ( b );
+                        d-> m_buttons-> append ( b );
                 }
         }
         reloadButtonMapping ( );
+        
+        QCopChannel *sysch = new QCopChannel ( "QPE/System", this );
+                connect ( sysch, SIGNAL( received( const QCString &, const QByteArray & )), this, SLOT( systemMessage ( const QCString &, const QByteArray & )));                            
 }
 
 ODevice::~ODevice ( )
 {
         delete d;
 }
 
 bool ODevice::setSoftSuspend ( bool /*soft*/ )
 {
         return false;
 }
 
 //#include <linux/apm_bios.h>
 
 #define APM_IOC_SUSPEND          OD_IO( 'A', 2 )
 
 
 bool ODevice::suspend ( )
 {
         if ( !d-> m_qwsserver ) // only qwsserver is allowed to suspend
                 return false;
 
         if ( d-> m_model == Model_Unknown ) // better don't suspend in qvfb / on unkown devices
                 return false;
 
         bool res = false;
         
         struct timeval tvs, tvn;
         ::gettimeofday ( &tvs, 0 );
         
         ::sync ( ); // flush fs caches
         res = ( ::system ( "apm --suspend" ) == 0 );
 
         // This is needed because the iPAQ apm implementation is asynchronous and we
         // can not be sure when exactly the device is really suspended
         // This can be deleted as soon as a stable familiar with a synchronous apm implementation exists.
 
                 if ( res ) {
                 do { // wait at most 1.5 sec: either suspend didn't work or the device resumed
                         ::usleep ( 200 * 1000 );
                                 ::gettimeofday ( &tvn, 0 );                     
                 } while ((( tvn. tv_sec - tvs. tv_sec ) * 1000 + ( tvn. tv_usec - tvs. tv_usec ) / 1000 ) < 1500 );
         }
         
         return res;
 }
 
 //#include <linux/fb.h> better not rely on kernel headers in userspace ...
 
 #define FBIOBLANK             OD_IO( 'F', 0x11 ) // 0x4611
 
 /* VESA Blanking Levels */
 #define VESA_NO_BLANKING      0
 #define VESA_VSYNC_SUSPEND    1
 #define VESA_HSYNC_SUSPEND    2
 #define VESA_POWERDOWN        3
 
 
 bool ODevice::setDisplayStatus ( bool on )
 {
         if ( d-> m_model == Model_Unknown )
                 return false;
 
         bool res = false;
         int fd;
         
         if (( fd = ::open ( "/dev/fb0", O_RDWR )) >= 0 ) {
                 res = ( ::ioctl ( fd, FBIOBLANK, on ? VESA_NO_BLANKING : VESA_POWERDOWN ) == 0 );
                 ::close ( fd );
                 }                                                                                       
         return res;
 }
 
 bool ODevice::setDisplayBrightness ( int )
 {
         return false;
 }
 
 int ODevice::displayBrightnessResolution ( ) const
 {
         return 16;
 }
 
 QString ODevice::vendorString ( ) const
 {
         return d-> m_vendorstr;
 }
 
 OVendor ODevice::vendor ( ) const
 {
         return d-> m_vendor;
 }
 
 QString ODevice::modelString ( ) const
 {
         return d-> m_modelstr;
 }
 
 OModel ODevice::model ( ) const
 {
         return d-> m_model;
 }
 
 QString ODevice::systemString ( ) const
 {
         return d-> m_systemstr;
 }
 
 OSystem ODevice::system ( ) const
 {
         return d-> m_system;
 }
 
 QString ODevice::systemVersionString ( ) const
 {
         return d-> m_sysverstr;
 }
 
 Transformation ODevice::rotation ( ) const
 {
         return d-> m_rotation;
 }
 
 void ODevice::alarmSound ( )
 {
 #ifndef QT_NO_SOUND
         static Sound snd ( "alarm" );
 
         if ( snd. isFinished ( ))
                 snd. play ( );
 #endif
 }
 
 void ODevice::keySound ( )
 {
 #ifndef QT_NO_SOUND
         static Sound snd ( "keysound" );
 
         if ( snd. isFinished ( ))
                 snd. play ( );
 #endif
 }
 
 void ODevice::touchSound ( )
 {
 
 #ifndef QT_NO_SOUND
         static Sound snd ( "touchsound" );
 
         if ( snd. isFinished ( ))
                 snd. play ( );
 #endif
 }
 
 
 QValueList <OLed> ODevice::ledList ( ) const
 {
         return QValueList <OLed> ( );
 }
 
 QValueList <OLedState> ODevice::ledStateList ( OLed /*which*/ ) const
 {
         return QValueList <OLedState> ( );
 }
 
 OLedState ODevice::ledState ( OLed /*which*/ ) const
 {
         return Led_Off;
 }
 
 bool ODevice::setLedState ( OLed /*which*/, OLedState /*st*/ )
 {
         return false;
 }
 
 bool ODevice::hasLightSensor ( ) const
 {
         return false;
 }
 
 int ODevice::readLightSensor ( )
 {
         return -1;
 }
 
 int ODevice::lightSensorResolution ( ) const
 {
         return 0;
 }
 
-const QValueList <ODeviceButton> &ODevice::buttons ( ) const
+const QValueList <ODeviceButton> &ODevice::buttons ( )
 {
-        return d-> m_buttons;
+        initButtons ( );
+
+        return *d-> m_buttons;
 }
 
 uint ODevice::buttonHoldTime ( ) const
 {
         return d-> m_holdtime;
 }
 
 const ODeviceButton *ODevice::buttonForKeycode ( ushort code )
 {
-        for ( QValueListConstIterator<ODeviceButton> it = d-> m_buttons. begin ( ); it != d-> m_buttons. end ( ); ++it ) {
+        initButtons ( );
+
+        for ( QValueListConstIterator<ODeviceButton> it = d-> m_buttons-> begin ( ); it != d-> m_buttons-> end ( ); ++it ) {
                 if ( (*it). keycode ( ) == code )
                         return &(*it);
         }
         return 0;
 }
 
 void ODevice::reloadButtonMapping ( )
 {
+        initButtons ( );
+
         Config cfg ( "ButtonSettings" );
         
-        for ( uint i = 0; i < d-> m_buttons. count ( ); i++ ) {
-                ODeviceButton &b = d-> m_buttons [i];
+        for ( uint i = 0; i < d-> m_buttons-> count ( ); i++ ) {
+                ODeviceButton &b = ( *d-> m_buttons ) [i];
                 QString group = "Button" + QString::number ( i );
 
                 QCString pch, hch;
                 QCString pm, hm;
                 QByteArray pdata, hdata;
                 
                 if ( cfg. hasGroup ( group )) {
                         cfg. setGroup ( group );
                         pch = cfg. readEntry ( "PressedActionChannel" ). latin1 ( );
                         pm  = cfg. readEntry ( "PressedActionMessage" ). latin1 ( );
                         // pdata = decodeBase64 ( buttonFile. readEntry ( "PressedActionArgs" ));
 
                         hch = cfg. readEntry ( "HeldActionChannel" ). latin1 ( );
                         hm  = cfg. readEntry ( "HeldActionMessage" ). latin1 ( );
                         // hdata = decodeBase64 ( buttonFile. readEntry ( "HeldActionArgs" ));
                 }
                                 
                 b. setPressedAction ( OQCopMessage ( pch, pm, pdata ));
                 
                 b. setHeldAction ( OQCopMessage ( hch, hm, hdata ));
         }
 }
 
 void ODevice::remapPressedAction ( int button, const OQCopMessage &action )
 {
+        initButtons ( );
+
         QString mb_chan;
         
-        if ( button >= (int) d-> m_buttons. count ( ))
+        if ( button >= (int) d-> m_buttons-> count ( ))
                 return;
-        
                 
-        ODeviceButton &b = d-> m_buttons [button];
+        ODeviceButton &b = ( *d-> m_buttons ) [button];
         b. setPressedAction ( action );
 
         mb_chan=b. pressedAction ( ). channel ( );
 
         Config buttonFile ( "ButtonSettings" );
         buttonFile. setGroup ( "Button" + QString::number ( button ));
         buttonFile. writeEntry ( "PressedActionChannel", (const char*) mb_chan);
         buttonFile. writeEntry ( "PressedActionMessage", (const char*) b. pressedAction ( ). message ( ));
 
         //buttonFile. writeEntry ( "PressedActionArgs", encodeBase64 ( b. pressedAction ( ). data ( )));
 
         QCopEnvelope ( "QPE/System", "deviceButtonMappingChanged()" );
 }
 
 void ODevice::remapHeldAction ( int button, const OQCopMessage &action )
 {
-        if ( button >= (int) d-> m_buttons. count ( ))
+        initButtons ( );
+
+        if ( button >= (int) d-> m_buttons-> count ( ))
                 return;
                 
-        ODeviceButton &b = d-> m_buttons [button];
+        ODeviceButton &b = ( *d-> m_buttons ) [button];
             b. setHeldAction ( action );
 
         Config buttonFile ( "ButtonSettings" );
         buttonFile. setGroup ( "Button" + QString::number ( button ));
         buttonFile. writeEntry ( "HeldActionChannel", (const char *) b. heldAction ( ). channel ( ));
         buttonFile. writeEntry ( "HeldActionMessage", (const char *) b. heldAction ( ). message ( ));
 
         //buttonFile. writeEntry ( "HeldActionArgs", decodeBase64 ( b. heldAction ( ). data ( )));
 
         QCopEnvelope ( "QPE/System", "deviceButtonMappingChanged()" );
 }
 
 
 
 
 /**************************************************
  *
  * iPAQ
  *
  **************************************************/
 
 void iPAQ::init ( )
 {
         d-> m_vendorstr = "HP";
         d-> m_vendor = Vendor_HP;
 
         QFile f ( "/proc/hal/model" );
 
         if ( f. open ( IO_ReadOnly )) {
                 QTextStream ts ( &f );
 
                 d-> m_modelstr = "H" + ts. readLine ( );
 
                 if ( d-> m_modelstr == "H3100" )
                         d-> m_model = Model_iPAQ_H31xx;
                 else if ( d-> m_modelstr == "H3600" )
                         d-> m_model = Model_iPAQ_H36xx;
                 else if ( d-> m_modelstr == "H3700" )
                         d-> m_model = Model_iPAQ_H37xx;
                 else if ( d-> m_modelstr == "H3800" )
                         d-> m_model = Model_iPAQ_H38xx;
                 else if ( d-> m_modelstr == "H3900" )
                         d-> m_model = Model_iPAQ_H39xx;
                 else
                         d-> m_model = Model_Unknown;
 
                 f. close ( );
         }
 
         switch ( d-> m_model ) {
                 case Model_iPAQ_H31xx:
                 case Model_iPAQ_H38xx:
                         d-> m_rotation = Rot90;
                         break;
                 case Model_iPAQ_H36xx:
                 case Model_iPAQ_H37xx:
                 case Model_iPAQ_H39xx:
                 default:
                         d-> m_rotation = Rot270;
                         break;
         }
 
         f. setName ( "/etc/familiar-version" );
         if ( f. open ( IO_ReadOnly )) { 
                 d-> m_systemstr = "Familiar";
                 d-> m_system = System_Familiar;
                 
                 QTextStream ts ( &f );
                 d-> m_sysverstr = ts. readLine ( ). mid ( 10 );
                 
                 f. close ( );
         }
 
         m_leds [0] = m_leds [1] = Led_Off;
         
         m_power_timer = 0;
         
+        if ( d-> m_qwsserver )
+                        QWSServer::setKeyboardFilter ( this );
+}
+
+void iPAQ::initButtons ( )
+{
+        if ( d-> m_buttons )
+                return;
+
+        d-> m_buttons = new QValueList <ODeviceButton>;
+
         for ( uint i = 0; i < ( sizeof( ipaq_buttons ) / sizeof( i_button )); i++ ) {
                         i_button *ib = ipaq_buttons + i;
                 ODeviceButton b;
                 
                         if (( ib-> model & d-> m_model ) == d-> m_model ) {     
                         b. setKeycode ( ib-> code );
                         b. setUserText ( QObject::tr ( "Button", ib-> utext ));
                         b. setPixmap ( Resource::loadPixmap ( ib-> pix ));
                         b. setFactoryPresetPressedAction ( OQCopMessage ( makeChannel ( ib-> fpressedservice ), ib-> fpressedaction ));
                         b. setFactoryPresetHeldAction ( OQCopMessage ( makeChannel ( ib-> fheldservice ), ib-> fheldaction ));
                                         
-                        d-> m_buttons. append ( b );
+                        d-> m_buttons-> append ( b );
                 }
         }
-        reloadButtonMapping ( );
+                reloadButtonMapping ( );
         
-        if ( d-> m_qwsserver )
-                        QWSServer::setKeyboardFilter ( this );
+        QCopChannel *sysch = new QCopChannel ( "QPE/System", this );
+        connect ( sysch, SIGNAL( received( const QCString &, const QByteArray & )), this, SLOT( systemMessage ( const QCString &, const QByteArray & )));
 }
 
+
 //#include <linux/h3600_ts.h>  // including kernel headers is evil ...
 
 typedef struct {
   unsigned char OffOnBlink;       /* 0=off 1=on 2=Blink */
   unsigned char TotalTime;        /* Units of 5 seconds */
   unsigned char OnTime;           /* units of 100m/s */
   unsigned char OffTime;          /* units of 100m/s */
 } LED_IN;
 
 typedef struct {
         unsigned char mode;
         unsigned char pwr;
         unsigned char brightness;
 } FLITE_IN;
 
 #define LED_ON    OD_IOW( 'f', 5, LED_IN )
 #define FLITE_ON  OD_IOW( 'f', 7, FLITE_IN )
 
 
 QValueList <OLed> iPAQ::ledList ( ) const
 {
         QValueList <OLed> vl;
         vl << Led_Power;
 
         if ( d-> m_model == Model_iPAQ_H38xx )
                 vl << Led_BlueTooth;
         return vl;
 }
 
 QValueList <OLedState> iPAQ::ledStateList ( OLed l ) const
 {
         QValueList <OLedState> vl;
 
         if ( l == Led_Power )
                 vl << Led_Off << Led_On << Led_BlinkSlow << Led_BlinkFast;
         else if ( l == Led_BlueTooth && d-> m_model == Model_iPAQ_H38xx )
                 vl << Led_Off; // << Led_On << ???
                 
         return vl;
 }
 
 OLedState iPAQ::ledState ( OLed l ) const
         {
         switch ( l ) {
                 case Led_Power:
                         return m_leds [0];
                 case Led_BlueTooth:
                         return m_leds [1];
                 default:
                         return Led_Off;
         }
 }
 
 bool iPAQ::setLedState ( OLed l, OLedState st ) 
 {
         static int fd = ::open ( "/dev/touchscreen/0", O_RDWR | O_NONBLOCK );
 
         if ( l == Led_Power ) {
                 if ( fd >= 0 ) {
                         LED_IN leds;
                         ::memset ( &leds, 0, sizeof( leds ));
                         leds. TotalTime  = 0;
                         leds. OnTime     = 0;
                         leds. OffTime    = 1;
                         leds. OffOnBlink = 2;
 
                         switch ( st ) {
                                 case Led_Off      : leds. OffOnBlink = 0; break;
                                 case Led_On       : leds. OffOnBlink = 1; break;
                                 case Led_BlinkSlow: leds. OnTime = 10; leds. OffTime = 10; break;
                                 case Led_BlinkFast: leds. OnTime =  5; leds. OffTime =  5; break;
                         }
 
                         if ( ::ioctl ( fd, LED_ON, &leds ) >= 0 ) {
                                 m_leds [0] = st;
                                 return true;
                         }
                 }
         }
         return false;
 }
 
 
 bool iPAQ::filter ( int /*unicode*/, int keycode, int modifiers, bool isPress, bool autoRepeat )
 {
         int newkeycode = keycode;
 
         switch ( keycode ) {
                 // H38xx/H39xx have no "Q" key anymore - this is now the Mail key
                 case HardKey_Menu: {
                         if (( d-> m_model == Model_iPAQ_H38xx ) ||
                                     ( d-> m_model == Model_iPAQ_H39xx )) {                  
                                 newkeycode = HardKey_Mail;
                         }
                         break;
                 }
                                 
                 // Rotate cursor keys 180°
                 case Key_Left : 
                 case Key_Right: 
                 case Key_Up   : 
                 case Key_Down : {
                         if (( d-> m_model == Model_iPAQ_H31xx ) ||
                                     ( d-> m_model == Model_iPAQ_H38xx )) {                  
                                 newkeycode = Key_Left + ( keycode - Key_Left + 2 ) % 4;
                         }
                         break;
                 }
 
                 // map Power Button short/long press to F34/F35
                 case Key_SysReq: {
                         if ( isPress ) {
                                 if ( m_power_timer )
                                         killTimer ( m_power_timer );
                                 m_power_timer = startTimer ( 500 );
                         }
                         else if ( m_power_timer ) {
                                 killTimer ( m_power_timer );
                                 m_power_timer = 0;
                                 QWSServer::sendKeyEvent ( -1, HardKey_Suspend, 0, true, false );
                                 QWSServer::sendKeyEvent ( -1, HardKey_Suspend, 0, false, false );
                         }
                                 newkeycode = Key_unknown;
                                 break;
                 }
         }
                         
         if ( newkeycode != keycode ) {
                 if ( newkeycode != Key_unknown )
                         QWSServer::sendKeyEvent ( -1, newkeycode, modifiers, isPress, autoRepeat );
                 return true;
         }
         else
                 return false;
 }
 
 void iPAQ::timerEvent ( QTimerEvent * )
 {
         killTimer ( m_power_timer );
         m_power_timer = 0;
         QWSServer::sendKeyEvent ( -1, HardKey_Backlight, 0, true, false );
         QWSServer::sendKeyEvent ( -1, HardKey_Backlight, 0, false, false );
 }
 
 
 void iPAQ::alarmSound ( )
 {
 #ifndef QT_NO_SOUND
         static Sound snd ( "alarm" );
         int fd;
         int vol;
         bool vol_reset = false;
 
         if (( fd = ::open ( "/dev/sound/mixer", O_RDWR )) >= 0 ) {
                 if ( ::ioctl ( fd, MIXER_READ( 0 ), &vol ) >= 0 ) {
                         Config cfg ( "qpe" );
                         cfg. setGroup ( "Volume" );
 
                         int volalarm = cfg. readNumEntry ( "AlarmPercent", 50 );
                         if ( volalarm < 0 )
                                 volalarm = 0;
                         else if ( volalarm > 100 )
                                 volalarm = 100;
                         volalarm |= ( volalarm << 8 );
 
                         if ( ::ioctl ( fd, MIXER_WRITE( 0 ), &volalarm ) >= 0 )
                                 vol_reset = true;
                 }
         }
 
         snd. play ( );
         while ( !snd. isFinished ( ))
                 qApp-> processEvents ( );
 
         if ( fd >= 0 ) {
                 if ( vol_reset )
                         ::ioctl ( fd, MIXER_WRITE( 0 ), &vol );
                 ::close ( fd );
         }
 #endif
 }
 
 
 bool iPAQ::setSoftSuspend ( bool soft )
 {
         bool res = false;
         int fd;
         
         if (( fd = ::open ( "/proc/sys/ts/suspend_button_mode", O_WRONLY )) >= 0 ) {
                 if ( ::write ( fd, soft ? "1" : "0", 1 ) == 1 )
                         res = true;
                 else
                         ::perror ( "write to /proc/sys/ts/suspend_button_mode" );
                 
                 ::close ( fd );
         }
         else
                 ::perror ( "/proc/sys/ts/suspend_button_mode" );
         
         return res;
 }
 
 
 bool iPAQ::setDisplayBrightness ( int bright )
 {
         bool res = false;
         int fd;
         
         if ( bright > 255 )
                 bright = 255;
         if ( bright < 0 )
                 bright = 0;
 
         if (( fd = ::open ( "/dev/touchscreen/0", O_WRONLY )) >= 0 ) {
                 FLITE_IN bl;
                 bl. mode = 1;
                 bl. pwr = bright ? 1 : 0;
                 bl. brightness = ( bright * ( displayBrightnessResolution ( ) - 1 ) + 127 ) / 255;
                 res = ( ::ioctl ( fd, FLITE_ON, &bl ) == 0 );
                 ::close ( fd );
         }
         return res;
 }
 
 int iPAQ::displayBrightnessResolution ( ) const
 {
         switch ( model ( )) {
                 case Model_iPAQ_H31xx:
                 case Model_iPAQ_H36xx:
                 case Model_iPAQ_H37xx:
                                 return 128;  // really 256, but >128 could damage the LCD
                         
                 case Model_iPAQ_H38xx:
                 case Model_iPAQ_H39xx:
                         return 64;
                 
                 default:
                         return 2;
                 }
 }
 
 
 bool iPAQ::hasLightSensor ( ) const
 {
         return true;
 }
 
 int iPAQ::readLightSensor ( )
 {
         int fd;
         int val = -1;
         
         if (( fd = ::open ( "/proc/hal/light_sensor", O_RDONLY )) >= 0 ) {
                 char buffer [8];
         
                 if ( ::read ( fd, buffer, 5 ) == 5 ) {
                         char *endptr;
                 
                         buffer [4] = 0;
                         val = ::strtol ( buffer + 2, &endptr, 16 );
                         
                         if ( *endptr != 0 )
                                 val = -1;
                         }
                 ::close ( fd );
         }
 
         return val;
 }
 
 int iPAQ::lightSensorResolution ( ) const
 {
         return 256;
 }
 
 /**************************************************
  *
  * Zaurus
  *
  **************************************************/
 
 
 
 void Zaurus::init ( )
 {
         d-> m_vendorstr = "Sharp";
         d-> m_vendor = Vendor_Sharp;
 
         QFile f ( "/proc/filesystems" );
 
         if ( f. open ( IO_ReadOnly ) && ( QTextStream ( &f ). read ( ). find ( "\tjffs2\n" ) >= 0 )) {
                 d-> m_vendorstr = "OpenZaurus Team";
                 d-> m_systemstr = "OpenZaurus";
                 d-> m_system = System_OpenZaurus;
 
                 f. close ( );
 
                 f. setName ( "/etc/oz_version" );
                 if ( f. open ( IO_ReadOnly )) { 
                         QTextStream ts ( &f );
                         d-> m_sysverstr = ts. readLine ( );//. mid ( 10 );
                         f. close ( );
                 }
         }
         else {
                 d-> m_systemstr = "Zaurus";
                 d-> m_system = System_Zaurus;
         }
 
         f. setName ( "/proc/deviceinfo/product" );
         if ( f. open ( IO_ReadOnly ) ) {
                 QTextStream ts ( &f );
                 QString model = ts. readLine ( );
                 f. close ( );
 
                 d-> m_modelstr = QString("Zaurus ") + model;
                 if ( model == "SL-5500" )
                         d-> m_model = Model_Zaurus_SL5500;
                 else if ( model == "SL-C700" )
                         d-> m_model = Model_Zaurus_SLC700;
                 else if ( model == "SL-A300" )
                         d-> m_model = Model_Zaurus_SLA300;
                 else if ( model == "SL-B600" || model == "SL-5600" )
                         d-> m_model = Model_Zaurus_SLB600;
                 else
                         d-> m_model = Model_Zaurus_SL5000;
         }
         else {
                 d-> m_model = Model_Zaurus_SL5000;
                 d-> m_modelstr = "Zaurus (model unknown)";
         }
 
         switch ( d-> m_model ) {
                 case Model_Zaurus_SLC700:
                         /* note for C700, we must check the display rotation
                          * sensor to set an appropriate value
                          */
                 case Model_Zaurus_SLA300:
                 case Model_Zaurus_SLB600:
                 case Model_Zaurus_SL5500:
                 case Model_Zaurus_SL5000:
                 default:
                         d-> m_rotation = Rot270;
                         break;
         }
+        m_leds [0] = Led_Off;
+}
+
+void Zaurus::initButtons ( )
+{
+        if ( d-> m_buttons )
+                return;
+                
+        d-> m_buttons = new QValueList <ODeviceButton>;
 
         for ( uint i = 0; i < ( sizeof( z_buttons ) / sizeof( z_button )); i++ ) {
                         z_button *zb = z_buttons + i;
                 ODeviceButton b;
                 
                 b. setKeycode ( zb-> code );
                 b. setUserText ( QObject::tr ( "Button", zb-> utext ));
                 b. setPixmap ( Resource::loadPixmap ( zb-> pix ));
                 b. setFactoryPresetPressedAction ( OQCopMessage ( makeChannel ( zb-> fpressedservice ), zb-> fpressedaction ));
                 b. setFactoryPresetHeldAction ( OQCopMessage ( makeChannel ( zb-> fheldservice ), zb-> fheldaction ));
                                         
-                d-> m_buttons. append ( b );
+                d-> m_buttons-> append ( b );
         }
+        
         reloadButtonMapping ( );
-
-        m_leds [0] = Led_Off;
+        
+        QCopChannel *sysch = new QCopChannel ( "QPE/System", this );
+        connect ( sysch, SIGNAL( received( const QCString &, const QByteArray & )), this, SLOT( systemMessage ( const QCString &, const QByteArray & )));
 }
 
 #include <unistd.h>
 #include <fcntl.h>
 #include <sys/ioctl.h>
 
 //#include <asm/sharp_char.h> // including kernel headers is evil ...
 
 #define SHARP_DEV_IOCTL_COMMAND_START 0x5680
 
         #defineSHARP_BUZZER_IOCTL_START (SHARP_DEV_IOCTL_COMMAND_START)
 #define SHARP_BUZZER_MAKESOUND   (SHARP_BUZZER_IOCTL_START)
 
 #define SHARP_BUZ_TOUCHSOUND       1  /* touch panel sound */
 #define SHARP_BUZ_KEYSOUND         2  /* key sound */
 #define SHARP_BUZ_SCHEDULE_ALARM  11  /* schedule alarm */
 
 /* --- for SHARP_BUZZER device --- */
 
         //#defineSHARP_BUZZER_IOCTL_START (SHARP_DEV_IOCTL_COMMAND_START)
 //#define SHARP_BUZZER_MAKESOUND   (SHARP_BUZZER_IOCTL_START)
 
 #define SHARP_BUZZER_SETVOLUME   (SHARP_BUZZER_IOCTL_START+1)
 #define SHARP_BUZZER_GETVOLUME   (SHARP_BUZZER_IOCTL_START+2)
 #define SHARP_BUZZER_ISSUPPORTED (SHARP_BUZZER_IOCTL_START+3)
 #define SHARP_BUZZER_SETMUTE     (SHARP_BUZZER_IOCTL_START+4)
 #define SHARP_BUZZER_STOPSOUND   (SHARP_BUZZER_IOCTL_START+5)
 
 //#define SHARP_BUZ_TOUCHSOUND       1  /* touch panel sound */
 //#define SHARP_BUZ_KEYSOUND         2  /* key sound */
 
 //#define SHARP_PDA_ILLCLICKSOUND    3  /* illegal click */
 //#define SHARP_PDA_WARNSOUND        4  /* warning occurred */
 //#define SHARP_PDA_ERRORSOUND       5  /* error occurred */
 //#define SHARP_PDA_CRITICALSOUND    6  /* critical error occurred */
 //#define SHARP_PDA_SYSSTARTSOUND    7  /* system start */
 //#define SHARP_PDA_SYSTEMENDSOUND   8  /* system shutdown */
 //#define SHARP_PDA_APPSTART         9  /* application start */
 //#define SHARP_PDA_APPQUIT         10  /* application ends */
 
 //#define SHARP_BUZ_SCHEDULE_ALARM  11  /* schedule alarm */
 //#define SHARP_BUZ_DAILY_ALARM     12  /* daily alarm */
 //#define SHARP_BUZ_GOT_PHONE_CALL  13  /* phone call sound */
 //#define SHARP_BUZ_GOT_MAIL        14  /* mail sound */
 //
 
         #defineSHARP_LED_IOCTL_START (SHARP_DEV_IOCTL_COMMAND_START)
 #define SHARP_LED_SETSTATUS   (SHARP_LED_IOCTL_START+1)
 
 typedef struct sharp_led_status {
   int which;   /* select which LED status is wanted. */
   int status;  /* set new led status if you call SHARP_LED_SETSTATUS */
 } sharp_led_status;
 
 #define SHARP_LED_MAIL_EXISTS  9       /* mail status (exists or not) */
 
 #define LED_MAIL_NO_UNREAD_MAIL  0   /* for SHARP_LED_MAIL_EXISTS */
 #define LED_MAIL_NEWMAIL_EXISTS  1   /* for SHARP_LED_MAIL_EXISTS */
 #define LED_MAIL_UNREAD_MAIL_EX  2   /* for SHARP_LED_MAIL_EXISTS */
 
 // #include <asm/sharp_apm.h> // including kernel headers is evil ...
 
 #define APM_IOCGEVTSRC          OD_IOR( 'A', 203, int )
 #define APM_IOCSEVTSRC          OD_IORW( 'A', 204, int )
 #define APM_EVT_POWER_BUTTON    (1 << 0)
 
 #define FL_IOCTL_STEP_CONTRAST    100
 
 
 void Zaurus::buzzer ( int sound )
 {
         static int fd = ::open ( "/dev/sharp_buz", O_RDWR|O_NONBLOCK );
   
         if ( fd >= 0 )
                 ::ioctl ( fd, SHARP_BUZZER_MAKESOUND, sound );
 }
 
 
 void Zaurus::alarmSound ( ) 
 {
         buzzer ( SHARP_BUZ_SCHEDULE_ALARM );
 }
 
 void Zaurus::touchSound ( ) 
 {
         buzzer ( SHARP_BUZ_TOUCHSOUND );
 }
 
 void Zaurus::keySound ( ) 
 {
         buzzer ( SHARP_BUZ_KEYSOUND );
 }
 
 
 QValueList <OLed> Zaurus::ledList ( ) const
 {
         QValueList <OLed> vl;
         vl << Led_Mail;
         return vl;
 }
 
 QValueList <OLedState> Zaurus::ledStateList ( OLed l ) const
 {
         QValueList <OLedState> vl;
         
         if ( l == Led_Mail )
                 vl << Led_Off << Led_On << Led_BlinkSlow;
         return vl;
 }
 
 OLedState Zaurus::ledState ( OLed which ) const
 {
         if ( which == Led_Mail )
                 return m_leds [0];
                 else
                 return Led_Off;
 }
 
 bool Zaurus::setLedState ( OLed which, OLedState st )
 {
         static int fd = ::open ( "/dev/sharp_led", O_RDWR|O_NONBLOCK ); 
 
         if ( which == Led_Mail ) {
                 if ( fd >= 0 ) {
                         struct sharp_led_status leds;
                         ::memset ( &leds, 0, sizeof( leds ));
                         leds. which = SHARP_LED_MAIL_EXISTS;
                         bool ok = true;
                         
                         switch ( st ) {
                                 case Led_Off      : leds. status = LED_MAIL_NO_UNREAD_MAIL; break;
                                 case Led_On       : leds. status = LED_MAIL_NEWMAIL_EXISTS; break;
                                 case Led_BlinkSlow: leds. status = LED_MAIL_UNREAD_MAIL_EX; break;
                                 default            : ok = false;
                         }
                 
                         if ( ok && ( ::ioctl ( fd, SHARP_LED_SETSTATUS, &leds ) >= 0 )) {
                                 m_leds [0] = st;
                                 return true;
                         }
                         }       
         }
         return false;
 }
 
 bool Zaurus::setSoftSuspend ( bool soft )
 {
         bool res = false;
         int fd;
 
         if ((( fd = ::open ( "/dev/apm_bios", O_RDWR )) >= 0 ) ||
         (( fd = ::open ( "/dev/misc/apm_bios",O_RDWR )) >= 0 )) {
 
                 int sources = ::ioctl ( fd, APM_IOCGEVTSRC, 0 ); // get current event sources
 
                 if ( sources >= 0 ) {
                         if ( soft )
                                 sources &= ~APM_EVT_POWER_BUTTON;
                         else
                                 sources |= APM_EVT_POWER_BUTTON;
 
                         if ( ::ioctl ( fd, APM_IOCSEVTSRC, sources ) >= 0 ) // set new event sources
                                 res = true;
                         else
                                 perror ( "APM_IOCGEVTSRC" );
                 }
                 else
                         perror ( "APM_IOCGEVTSRC" );
                 
                 ::close ( fd );
         }
         else
                 perror ( "/dev/apm_bios or /dev/misc/apm_bios" );
                 
     return res;
 }
 
 
 bool Zaurus::setDisplayBrightness ( int bright )
 {
         bool res = false;
         int fd;
         
         if ( bright > 255 )
                 bright = 255;
         if ( bright < 0 )
                 bright = 0;
         
         if (( fd = ::open ( "/dev/fl", O_WRONLY )) >= 0 ) {
                 int bl = ( bright * 4 + 127 ) / 255; // only 4 steps on zaurus
                 if ( bright && !bl )
                         bl = 1;
                 res = ( ::ioctl ( fd, FL_IOCTL_STEP_CONTRAST, bl ) == 0 );
                 ::close ( fd );
         }
         return res;
 }
 
 
 int Zaurus::displayBrightnessResolution ( ) const 
 {
         return 5;
 }
 
 
diff --git a/libopie/odevice.h b/libopie/odevice.h
index 575e1fe..ff578d8 100644
--- a/libopie/odevice.h
+++ b/libopie/odevice.h
@@ -1,198 +1,199 @@
 /*  This file is part of the OPIE libraries
     Copyright (C) 2002 Robert Griebl (sandman@handhelds.org)
             
     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Library General Public
     License as published by the Free Software Foundation; either
     version 2 of the License, or (at your option) any later version.
                              
     This library is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     Library General Public License for more details.
                                           
     You should have received a copy of the GNU Library General Public License
     along with this library; see the file COPYING.LIB.  If not, write to
     the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
     Boston, MA 02111-1307, USA.
 */
 
 #ifndef _LIBOPIE_ODEVICE_H_
 #define _LIBOPIE_ODEVICE_H_
 
 #include <qobject.h>
 #include <qstring.h>
 #include <qnamespace.h>
 
 #include <opie/odevicebutton.h>
 
 #include <qpe/qpeapplication.h> /* for Transformation enum.. */
 
 class ODeviceData;
 
 namespace Opie {
 
 enum OModel {
         Model_Unknown,
         
         Model_Series_Mask   = 0xff000000,
 
         Model_iPAQ          = ( 1 << 24 ),
 
         Model_iPAQ_All      = ( Model_iPAQ | 0xffffff ),
         Model_iPAQ_H31xx    = ( Model_iPAQ | 0x000001 ),
         Model_iPAQ_H36xx    = ( Model_iPAQ | 0x000002 ),
         Model_iPAQ_H37xx    = ( Model_iPAQ | 0x000004 ),
         Model_iPAQ_H38xx    = ( Model_iPAQ | 0x000008 ),
         Model_iPAQ_H39xx    = ( Model_iPAQ | 0x000010 ),
 
         Model_Zaurus        = ( 2 << 24 ),
 
         Model_Zaurus_SL5000 = ( Model_Zaurus | 0x000001 ),
         Model_Zaurus_SL5500 = ( Model_Zaurus | 0x000002 ),
         Model_Zaurus_SLA300 = ( Model_Zaurus | 0x000003 ),
         Model_Zaurus_SLB600 = ( Model_Zaurus | 0x000004 ),
         Model_Zaurus_SLC700 = ( Model_Zaurus | 0x000005 ),
 };
 
         enum OVendor {
         Vendor_Unknown,
 
         Vendor_HP,
         Vendor_Sharp
         };
 
 enum OSystem {
         System_Unknown,
 
         System_Familiar,
         System_Zaurus,
         System_OpenZaurus
 };
 
 enum OLedState {
         Led_Off,
         Led_On,
         Led_BlinkSlow,
         Led_BlinkFast
 };
 
 enum OLed {
         Led_Mail,
         Led_Power,
         Led_BlueTooth
 };
 
 enum OHardKey {
         HardKey_Datebook  = Qt::Key_F9,
         HardKey_Contacts  = Qt::Key_F10,
         HardKey_Menu      = Qt::Key_F11,
         HardKey_Home      = Qt::Key_F12,
         HardKey_Mail      = Qt::Key_F13,
         HardKey_Record    = Qt::Key_F24,
         HardKey_Suspend   = Qt::Key_F34,
         HardKey_Backlight = Qt::Key_F35,
 };
 
 class ODevice : public QObject {
         Q_OBJECT
         
 private:
         ODevice ( const ODevice & );
 
 protected:
         ODevice ( );
         virtual void init ( );
+        virtual void initButtons ( );
         
         ODeviceData *d;
 
 public:
         virtual ~ODevice ( );
 
         static ODevice *inst ( );
 
 // information
 
         QString modelString ( ) const; 
         OModel model ( ) const;
         inline OModel series ( ) const { return (OModel) ( model ( ) & Model_Series_Mask ); }
         
         QString vendorString ( ) const;
         OVendor vendor ( ) const;
 
         QString systemString ( ) const;
         OSystem system ( ) const;
 
         QString systemVersionString ( ) const;
 
         Transformation rotation ( ) const;
 
         // system
 
         virtual bool setSoftSuspend ( bool on );
         virtual bool suspend ( );
 
         virtual bool setDisplayStatus ( bool on );
         virtual bool setDisplayBrightness ( int brightness );
         virtual int displayBrightnessResolution ( ) const;
         
 // input / output
 
         virtual void alarmSound ( );
         virtual void keySound ( );
         virtual void touchSound ( );
 
         virtual QValueList <OLed> ledList ( ) const;
         virtual QValueList <OLedState> ledStateList ( OLed led ) const;
         virtual OLedState ledState ( OLed led ) const;
         virtual bool setLedState ( OLed led, OLedState st );
 
         virtual bool hasLightSensor ( ) const;
         virtual int readLightSensor ( );
         virtual int lightSensorResolution ( ) const;
 
         /**
          * Returns the available buttons on this device.  The number and location
          * of buttons will vary depending on the device.  Button numbers will be assigned
          * by the device manufacturer and will be from most preferred button to least preffered
          * button.  Note that this list only contains "user mappable" buttons.
          */
-        const QValueList<ODeviceButton> &buttons ( ) const;
+        const QValueList<ODeviceButton> &buttons ( );
         
         /**
          * Returns the DeviceButton for the \a keyCode.  If \a keyCode is not found, it
          * returns 0L
          */
         const ODeviceButton *buttonForKeycode ( ushort keyCode );
 
         /**
          * Reassigns the pressed action for \a button.  To return to the factory
          * default pass an empty string as \a qcopMessage.
          */
         void remapPressedAction ( int button, const OQCopMessage &qcopMessage );
 
         /**
          * Reassigns the held action for \a button.  To return to the factory
          * default pass an empty string as \a qcopMessage.
                  */ 
         void remapHeldAction ( int button, const OQCopMessage &qcopMessage );
 
         /**
          * How long (in ms) you have to press a button for a "hold" action
          */
         uint buttonHoldTime ( ) const;
 
         signals:
         void buttonMappingChanged ( );
         
         private slots:
         void systemMessage ( const QCString &, const QByteArray & );
         
 protected:
         void reloadButtonMapping ( );
 };
 
 }
 
 #endif