1) Fixes for suspend/resume (improved it for iPAQ, shouldn't have changed

   anything for Z) -- It seems that this also fixes the 70% CPU load
   problem (needs more testing/feedback though)

2) the launcher now creates a /var/run/opie.pid file containing its pid

3) the launcher catches SIGTERM and kills all its child processes

4 files changed, 135 insertions, 31 deletions

diff --git a/core/launcher/desktop.cpp b/core/launcher/desktop.cpp
index f90da1a..7f24259 100644
--- a/core/launcher/desktop.cpp
+++ b/core/launcher/desktop.cpp
@@ -511,216 +511,226 @@ void Desktop::raiseDatebook()
     }
 }
 
 void Desktop::raiseContacts()
 {
     Config cfg("qpe"); //F10, 'Contacts'
     cfg.setGroup("AppsKey");
     QString tempItem;
     tempItem = cfg.readEntry("Left2nd","Address Book");
     if(tempItem == "Address Book" || tempItem.isEmpty())  executeOrModify("Applications/addressbook.desktop");
     else {
         QCopEnvelope e("QPE/System","execute(QString)");
         e << tempItem;
     }
 }
 
 void Desktop::raiseMenu()
 {
     Config cfg("qpe"); //F11, 'Menu'
     cfg.setGroup("AppsKey");
     QString tempItem;
     tempItem = cfg.readEntry("Right2nd","Popup Menu");
     if(tempItem == "Popup Menu" || tempItem.isEmpty()) {
     Global::terminateBuiltin("calibrate");
     tb->startMenu()->launch();
     } else {
         QCopEnvelope e("QPE/System","execute(QString)");
         e << tempItem;
     }
 }
 
 void Desktop::raiseEmail()
 {
     Config cfg("qpe"); //F13, 'Mail'
     cfg.setGroup("AppsKey");
     QString tempItem;
     tempItem = cfg.readEntry("RightEnd","Mail");
     if(tempItem == "Mail" || tempItem == "qtmail" || tempItem.isEmpty())  executeOrModify("Applications/qtmail.desktop");
     else {
         QCopEnvelope e("QPE/System","execute(QString)");
         e << tempItem;
     }
 }
 
 // autoStarts apps on resume and start
 void Desktop::execAutoStart() {
     QString appName;
     int delay;
     QDateTime now = QDateTime::currentDateTime();
     Config cfg( "autostart" );
     cfg.setGroup( "AutoStart" );
     appName = cfg.readEntry("Apps", "");
     delay = (cfg.readEntry("Delay", "0" )).toInt();
     // If the time between suspend and resume was longer then the
     // value saved as delay, start the app
     if ( suspendTime.secsTo(now) >= (delay*60) ) {
         QCopEnvelope e("QPE/System", "execute(QString)");
         e << QString(appName);
     } //else {
     //}
 }
 
 #if defined(QPE_HAVE_TOGGLELIGHT)
 #include <qpe/config.h>
 
 #include <sys/ioctl.h>
 #include <sys/types.h>
 #include <fcntl.h>
 #include <unistd.h>
 #include <errno.h>
 #include <linux/ioctl.h>
 #include <time.h>
 #endif
 
 static bool blanked=FALSE;
 
 static void blankScreen()
 {
     if ( !qt_screen ) return;
     /* Should use a big black window instead.
     QGfx* g = qt_screen->screenGfx();
     g->fillRect(0,0,qt_screen->width(),qt_screen->height());
     delete g;
     */
     blanked = TRUE;
 }
 
 static void darkScreen()
 {
     extern void qpe_setBacklight(int);
     qpe_setBacklight(0); // force off
 }
 
 
 void Desktop::togglePower()
 {
-  bool wasloggedin = loggedin;
-  loggedin=0;
-  suspendTime = QDateTime::currentDateTime();
-  darkScreen();
-  if ( wasloggedin )
-    blankScreen();
-
-  system("apm --suspend");
-
-
-
-  QWSServer::screenSaverActivate( FALSE );
-  {
-    QCopEnvelope("QPE/Card", "mtabChanged()" ); // might have changed while asleep
-    QCopEnvelope e("QPE/System", "setBacklight(int)");
-    e << -3; // Force on
-  }
-  if ( wasloggedin ) {
-    login(TRUE);
-  }
-  sleep(1);
-  execAutoStart();
-  //qcopBridge->closeOpenConnections();
-  //qDebug("called togglePower()!!!!!!");
+        static bool excllock = false;
+        
+        if ( excllock )
+                return;
+                
+        excllock = true;
+
+        bool wasloggedin = loggedin;
+        loggedin=0;
+        suspendTime = QDateTime::currentDateTime();
+        darkScreen();
+        if ( wasloggedin )
+            blankScreen();
+
+        ODevice::inst ( )-> suspend ( );
+
+        QWSServer::screenSaverActivate( FALSE );
+
+        {
+                QCopEnvelope("QPE/Card", "mtabChanged()" ); // might have changed while asleep
+                QCopEnvelope e("QPE/System", "setBacklight(int)");
+                e << -3; // Force on
+        }
+
+        if ( wasloggedin )
+                login(TRUE);
+
+        execAutoStart();
+        //qcopBridge->closeOpenConnections();
+        //qDebug("called togglePower()!!!!!!");
+  
+        qApp-> processEvents ( );
+  
+          excllock = false;
 }
 
 void Desktop::toggleLight()
 {
     QCopEnvelope e("QPE/System", "setBacklight(int)");
     e << -2; // toggle
 }
 
 void Desktop::toggleSymbolInput()
 {
     tb->toggleSymbolInput();
 }
 
 void Desktop::toggleNumLockState()
 {
     tb->toggleNumLockState();
 }
 
 void Desktop::toggleCapsLockState()
 {
     tb->toggleCapsLockState();
 }
 
 void Desktop::styleChange( QStyle &s )
 {
     QWidget::styleChange( s );
     int displayw = qApp->desktop()->width();
     int displayh = qApp->desktop()->height();
 
     QSize sz = tb->sizeHint();
 
     tb->setGeometry( 0, displayh-sz.height(), displayw, sz.height() );
 }
 
 void DesktopApplication::shutdown()
 {
     if ( type() != GuiServer )
   return;
     ShutdownImpl *sd = new ShutdownImpl( 0, 0, WDestructiveClose );
     connect( sd, SIGNAL(shutdown(ShutdownImpl::Type)),
        this, SLOT(shutdown(ShutdownImpl::Type)) );
     sd->showMaximized();
 }
 
 void DesktopApplication::shutdown( ShutdownImpl::Type t )
 {
     switch ( t ) {
   case ShutdownImpl::ShutdownSystem:
       execlp("shutdown", "shutdown", "-h", "now", (void*)0);
       break;
   case ShutdownImpl::RebootSystem:
       execlp("shutdown", "shutdown", "-r", "now", (void*)0);
       break;
   case ShutdownImpl::RestartDesktop:
       restart();
       break;
   case ShutdownImpl::TerminateDesktop:
       prepareForTermination(FALSE);
       
       // This is a workaround for a Qt bug
       // clipboard applet has to stop its poll timer, or Qt/E
       // will hang on quit() right before it emits aboutToQuit()      
       emit aboutToQuit ( );
       
       quit();
       break;
     }
 }
 
 void DesktopApplication::restart()
 {
     prepareForTermination(TRUE);
 
 #ifdef Q_WS_QWS
     for ( int fd = 3; fd < 100; fd++ )
   close( fd );
 #if defined(QT_DEMO_SINGLE_FLOPPY)
     execl( "/sbin/init", "qpe", 0 );
 #elif defined(QT_QWS_CASSIOPEIA)
     execl( "/bin/sh", "sh", 0 );
 #else
     execl( (qpeDir()+"/bin/qpe").latin1(), "qpe", 0 );
 #endif
     exit(1);
 #endif
 }
 
 void Desktop::startTransferServer()
 {
     // start qcop bridge server
     qcopBridge = new QCopBridge( 4243 );
     if ( !qcopBridge->ok() ) {
   delete qcopBridge;
   qcopBridge = 0;
     }
     // start transfer server
diff --git a/core/launcher/main.cpp b/core/launcher/main.cpp
index a19da14..1e741d5 100644
--- a/core/launcher/main.cpp
+++ b/core/launcher/main.cpp
@@ -240,115 +240,145 @@ public:
                                                 m_power_timer = startTimer ( 500 );
                                         }
                                         else if ( m_power_timer ) {
                                                 killTimer ( m_power_timer );
                                                 m_power_timer = 0;
                                                 QWSServer::sendKeyEvent ( -1, Key_F34, 0, true, false );
                                                 QWSServer::sendKeyEvent ( -1, Key_F34, 0, false, false );
                                         }
                                                 kill = true;            
                                 }
                                 break;
                         }
                         default: break;
                         }                       
                 return kill;
         }
 
         virtual void timerEvent ( QTimerEvent * )
         {
                 killTimer ( m_power_timer );
                 m_power_timer = 0;
                 QWSServer::sendKeyEvent ( -1, Key_F35, 0, true, false );
                 QWSServer::sendKeyEvent ( -1, Key_F35, 0, false, false );
         }
 
 private:
         OModel  m_model;
         int     m_power_timer;
 };
 
 
 
 int initApplication( int argc, char ** argv )
 {
 #ifdef QT_QWS_CASSIOPEIA
     initCassiopeia();
 #endif
 
 #ifdef QPE_OWNAPM
     initAPM();
 #endif
 
 #ifdef QT_DEMO_SINGLE_FLOPPY
     initFloppy();
 #endif
 
     initEnvironment();
 
 #if !defined(QT_QWS_CASSIOPEIA) && !defined(QT_QWS_IPAQ) && !defined(QT_QWS_EBX)
     setenv( "QWS_SIZE", "240x320", 0 );
 #endif
 
     //Don't flicker at startup:
     QWSServer::setDesktopBackground( QImage() );
     DesktopApplication a( argc, argv, QApplication::GuiServer );
 
         (void) new ModelKeyFilter ( );
 
     initBacklight();
 
     AlarmServer::initialize();
 
     Desktop *d = new Desktop();
 
     QObject::connect( &a, SIGNAL(datebook()), d, SLOT(raiseDatebook()) );
     QObject::connect( &a, SIGNAL(contacts()), d, SLOT(raiseContacts()) );
     QObject::connect( &a, SIGNAL(launch()),   d, SLOT(raiseLauncher()) );
     QObject::connect( &a, SIGNAL(email()),   d, SLOT(raiseEmail()) );
     QObject::connect( &a, SIGNAL(power()),   d, SLOT(togglePower()) );
     QObject::connect( &a, SIGNAL(backlight()),   d, SLOT(toggleLight()) );
     QObject::connect( &a, SIGNAL(symbol()),   d, SLOT(toggleSymbolInput()) );
     QObject::connect( &a, SIGNAL(numLockStateToggle()),   d, SLOT(toggleNumLockState()) );
     QObject::connect( &a, SIGNAL(capsLockStateToggle()),   d, SLOT(toggleCapsLockState()) );
     QObject::connect( &a, SIGNAL(prepareForRestart()),   d, SLOT(terminateServers()) );
 
     (void)new SysFileMonitor(d);
     Network::createServer(d);
 
 #if defined(QT_QWS_CASSIOPEIA) || defined(QT_QWS_IPAQ) || defined(QT_QWS_EBX)
     if ( !QFile::exists( "/etc/pointercal" ) ) {
         // Make sure calibration widget starts on top.
         Calibrate *cal = new Calibrate;
         cal->exec();
         delete cal;
     }
 #endif
 
     d->show();
 
     int rv =  a.exec();
 
     delete d;
 
     return rv;
 }
 
+static const char *pidfile_path = "/var/run/opie.pid";
+
+void create_pidfile ( )
+{
+        FILE *f;
+        
+        if (( f = ::fopen ( pidfile_path, "w" ))) {
+                ::fprintf ( f, "%d", getpid ( ));
+                ::fclose ( f );
+        }
+}
+
+void remove_pidfile ( )
+{
+        ::unlink ( pidfile_path );
+}
+
+void handle_sigterm ( int sig )
+{
+        if ( qApp )
+                qApp-> quit ( );
+}
+
 int main( int argc, char ** argv )
 {
 #ifndef SINGLE_APP
-    signal( SIGCHLD, SIG_IGN );
+    ::signal( SIGCHLD, SIG_IGN );
+
+        ::signal ( SIGTERM, handle_sigterm );
+
+        ::setsid ( );
+        ::setpgid ( 0, 0 );
+        
+        ::atexit ( remove_pidfile );
+        create_pidfile ( );
 #endif
 
-    int retVal = initApplication( argc, argv );
+    int retVal = initApplication ( argc, argv );
 
 #ifndef SINGLE_APP
     // Kill them. Kill them all.
-    setpgid( getpid(), getppid() );
-    killpg( getpid(), SIGTERM );
-    sleep( 1 );
-    killpg( getpid(), SIGKILL );
+    ::kill ( 0, SIGTERM );
+    ::sleep( 1 );
+    ::kill ( 0, SIGKILL );
 #endif
 
     return retVal;
 }
 
diff --git a/libopie/odevice.cpp b/libopie/odevice.cpp
index bc8014a..057c344 100644
--- a/libopie/odevice.cpp
+++ b/libopie/odevice.cpp
@@ -1,368 +1,430 @@
 /*  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 <qfile.h>
 #include <qtextstream.h>
 #include <qpe/sound.h>
 #include <qpe/resource.h>
 
 
 #include "odevice.h"
 
 
 class ODeviceData {
 public:
         QString m_vendorstr;
         OVendor m_vendor;
         
         QString m_modelstr;
         OModel m_model;
 
         QString m_systemstr;
         OSystem m_system;
         
         QString m_sysverstr;
         
         OLedState m_leds [4]; // just for convenience ...
 };
 
 class ODeviceIPAQ : public ODevice {
 protected: 
         virtual void init ( );
         
 public:
+        virtual bool suspend ( );
+
         virtual void alarmSound ( );
 
         virtual uint hasLeds ( ) const;
         virtual OLedState led ( uint which ) const;
         virtual bool setLed ( uint which, OLedState st );
+        
+private:
+        static void tstp_sighandler ( int );
 };
 
 class ODeviceZaurus : public ODevice {
 protected:
         virtual void init ( );
 
         public:
         virtual void alarmSound ( );
         virtual void keySound ( );
                 virtual void touchSound ( );
 
         virtual uint hasLeds ( ) const;
         virtual OLedState led ( uint which ) const;
                 virtual bool setLed ( uint which, OLedState st );
         
 protected:
         virtual void buzzer ( int snd );
 };
 
 
 
 
 ODevice *ODevice::inst ( )
 {
         static ODevice *dev = 0;
         
         if ( !dev ) {
                 if ( QFile::exists ( "/proc/hal/model" ))
                         dev = new ODeviceIPAQ ( );
                 else if ( QFile::exists ( "/dev/sharp_buz" ) || QFile::exists ( "/dev/sharp_led" ))
                         dev = new ODeviceZaurus ( );
                 else
                         dev = new ODevice ( );
                         
                 dev-> init ( );
         }
         return dev;
 }
 
 ODevice::ODevice ( )
 {
         d = new ODeviceData;
 
         d-> m_modelstr = "Unknown";
         d-> m_model = OMODEL_Unknown;
         d-> m_vendorstr = "Unkown";
         d-> m_vendor = OVENDOR_Unknown;
         d-> m_systemstr = "Unkown";
         d-> m_system = OSYSTEM_Unknown;
         d-> m_sysverstr = "0.0";
 }
 
 void ODevice::init ( )
 {
 }
 
 ODevice::~ODevice ( )
 {
         delete d;
 }
 
+bool ODevice::suspend ( )
+{
+        int rc = ::system ( "apm --suspend" );
+        
+        if (( rc == 127 ) || ( rc == -1 ))
+                return false;
+        else
+                return true;
+}
+
 QString ODevice::vendorString ( )
 {
         return d-> m_vendorstr;
 }
 
 OVendor ODevice::vendor ( )
 {
         return d-> m_vendor;
 }
 
 QString ODevice::modelString ( )
 {
         return d-> m_modelstr;
 }
 
 OModel ODevice::model ( )
 {
         return d-> m_model;
 }
 
 QString ODevice::systemString ( )
 {
         return d-> m_systemstr;
 }
 
 OSystem ODevice::system ( )
 {
         return d-> m_system;
 }
 
 QString ODevice::systemVersionString ( )
 {
         return d-> m_sysverstr;
 }
 
 void ODevice::alarmSound ( )
 {
 #ifndef QT_QWS_EBX
 #ifndef QT_NO_SOUND
         static Sound snd ( "alarm" );
 
         if ( snd. isFinished ( ))
                 snd. play ( );
 #endif
 #endif
 }
 
 void ODevice::keySound ( )
 {
 #ifndef QT_QWS_EBX
 #ifndef QT_NO_SOUND
         static Sound snd ( "keysound" );
 
         if ( snd. isFinished ( ))
                 snd. play ( );
 #endif
 #endif
 }
 
 void ODevice::touchSound ( )
 {
 
 #ifndef QT_QWS_EBX
 #ifndef QT_NO_SOUND
         static Sound snd ( "touchsound" );
 //qDebug("touchSound");
         if ( snd. isFinished ( )) {
                 snd. play ( );
         //      qDebug("sound should play");
                 }
 #endif
 #endif
 }
 
 uint ODevice::hasLeds ( ) const
 {
         return 0;
 }
 
 OLedState ODevice::led ( uint /*which*/ ) const
 {
         return OLED_Off;
 }
 
 bool ODevice::setLed ( uint /*which*/, OLedState /*st*/ )
 {
         return false;
 }
 
 
 
 
 //#if defined( QT_QWS_IPAQ ) // IPAQ
 
 
 void ODeviceIPAQ::init ( )
 {
         d-> m_vendorstr = "HP";
         d-> m_vendor = OVENDOR_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 = OMODEL_iPAQ_H31xx;
                 else if ( d-> m_modelstr == "H3600" )
                         d-> m_model = OMODEL_iPAQ_H36xx;
                 else if ( d-> m_modelstr == "H3700" )
                         d-> m_model = OMODEL_iPAQ_H37xx;
                 else if ( d-> m_modelstr == "H3800" )
                         d-> m_model = OMODEL_iPAQ_H38xx;
                 else
                         d-> m_model = OMODEL_Unknown;
 
                 f. close ( );
         }
 
         f. setName ( "/etc/familiar-version" );
         if ( f. open ( IO_ReadOnly )) { 
                 d-> m_systemstr = "Familiar";
                 d-> m_system = OSYSTEM_Familiar;
                 
                 QTextStream ts ( &f );
                 d-> m_sysverstr = ts. readLine ( ). mid ( 10 );
                 
                 f. close ( );
         }
 
         d-> m_leds [0] = OLED_Off;
 }
 
 #include <unistd.h>
 #include <fcntl.h>
 #include <sys/ioctl.h>
+#include <signal.h>
+#include <sys/time.h>
 #include <linux/soundcard.h>
 #include <qapplication.h>
 #include <qpe/config.h>
 
 //#include <linux/h3600_ts.h>  // including kernel headers is evil ...
 
 typedef struct h3600_ts_led {
   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;
 
 
 // #define IOC_H3600_TS_MAGIC  'f'
 // #define LED_ON                  _IOW(IOC_H3600_TS_MAGIC,  5, struct h3600_ts_led)
 #define LED_ON    (( 1<<30 ) | ( 'f'<<8 ) | ( 5 ) | ( sizeof(struct h3600_ts_led)<<16 )) // _IOW only defined in kernel headers :(
 
 
+//#include <linux/apm_bios.h>
+
+//#define APM_IOC_SUSPEND        _IO('A',2)
+
+#define APM_IOC_SUSPEND          (( 0<<30 ) | ( 'A'<<8 ) | ( 2 ) | ( 0<<16 ))
+
+
+void ODeviceIPAQ::tstp_sighandler ( int )
+{
+}
+
+
+bool ODeviceIPAQ::suspend ( )
+{
+        int fd;
+        bool res = false;
+        
+                if (( fd = ::open ( "/dev/apm_bios", O_RDWR )) >= 0 ) {
+                struct timeval tvs, tvn;
+
+                        ::signal ( SIGTSTP, tstp_sighandler );  
+                ::gettimeofday ( &tvs, 0 );
+        
+                res = ( ::ioctl ( fd, APM_IOC_SUSPEND ) == 0 );
+                ::close ( fd );
+
+                        if ( res ) {
+                        ::kill ( -::getpid ( ), SIGTSTP );
+
+                        do {
+                                ::usleep ( 200 * 1000 );
+                                        ::gettimeofday ( &tvn, 0 );                     
+                        } while ((( tvn. tv_sec - tvs. tv_sec ) * 1000 + ( tvn. tv_usec - tvs. tv_usec ) / 1000 ) < 1500 );
+                        
+                        ::kill ( -::getpid ( ), SIGCONT );
+                        }
+                
+                ::signal ( SIGTSTP, SIG_DFL );
+        }
+        return res;
+}
+
+
 void ODeviceIPAQ::alarmSound ( )
 {
 #if defined( QT_QWS_IPAQ ) // IPAQ
 #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 ) ||
             (( fd = ::open ( "/dev/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 (( volalarm & 0xff ) > ( vol & 0xff )) {
                                 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
 #endif
 }
 
 uint ODeviceIPAQ::hasLeds ( ) const
 {
         return 1;
 }
 
 OLedState ODeviceIPAQ::led ( uint which ) const
 {
         if ( which == 0 )
                 return d-> m_leds [0];
         else
                 return OLED_Off;
 }
 
 bool ODeviceIPAQ::setLed ( uint which, OLedState st )
 {
         static int fd = ::open ( "/dev/touchscreen/0", O_RDWR|O_NONBLOCK );
 
         if ( which == 0 ) {
                 if ( fd >= 0 ) {
                         struct h3600_ts_led leds;
                         ::memset ( &leds, 0, sizeof( leds ));
                         leds. TotalTime  = 0;
                         leds. OnTime     = 0;
                         leds. OffTime    = 1;
                         leds. OffOnBlink = 2;
 
                         switch ( st ) {
                                 case OLED_Off      : leds. OffOnBlink = 0; break;
                                 case OLED_On       : leds. OffOnBlink = 1; break;
                                 case OLED_BlinkSlow: leds. OnTime = 10; leds. OffTime = 10; break;
                                 case OLED_BlinkFast: leds. OnTime =  5; leds. OffTime =  5; break;
                         }
 
                         if ( ::ioctl ( fd, LED_ON, &leds ) >= 0 ) {
                                 d-> m_leds [0] = st;
                                 return true;
                         }
                 }
         }
         return false;
 }
 
 
 //#endif
 
 
 
 
 
 //#if defined( QT_QWS_EBX ) // Zaurus
 
 void ODeviceZaurus::init ( )
 {
diff --git a/libopie/odevice.h b/libopie/odevice.h
index b54e576..eeae357 100644
--- a/libopie/odevice.h
+++ b/libopie/odevice.h
@@ -1,108 +1,110 @@
 /*  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 <qstring.h>
 
 
 class ODeviceData;
 
 enum OModel {
         OMODEL_Unknown,
 
         OMODEL_iPAQ_H31xx,
         OMODEL_iPAQ_H36xx,
         OMODEL_iPAQ_H37xx,
         OMODEL_iPAQ_H38xx,
 
         OMODEL_Zaurus_SL5000
 };
 
         enum OVendor {
         OVENDOR_Unknown,
 
         OVENDOR_HP,
         OVENDOR_Sharp
         };
 
 enum OSystem {
         OSYSTEM_Unknown,
 
         OSYSTEM_Familiar,
         OSYSTEM_Zaurus,
         OSYSTEM_OpenZaurus
 };
 
 enum OLedState {
         OLED_Off,
         OLED_On,
         OLED_BlinkSlow,
         OLED_BlinkFast
 };
 
 
 class ODevice
 {
 public:
 
 public:
         static ODevice *inst ( );
-        
+
+        // system
+        virtual bool suspend ( );
 
 // information
 
         QString modelString ( ); 
         OModel model ( );
         
         QString vendorString ( );
         OVendor vendor ( );
 
         QString systemString ( );
         OSystem system ( );
 
         QString systemVersionString ( );
 
 // input / output
 
         virtual void alarmSound ( );
         virtual void keySound ( );
         virtual void touchSound ( );
 
         virtual uint hasLeds ( ) const;
         virtual OLedState led ( uint which ) const;
         virtual bool setLed ( uint which, OLedState st );
 
         virtual ~ODevice ( );
 
 protected:
         ODevice ( );
         virtual void init ( );
 
         ODeviceData *d;
 
 private:
         ODevice ( const ODevice & );
 
 };
 
 #endif