--- /dev/null
+--- libopie2/opiecore/device/odevice_ipaq.cpp.orig 2006-07-22 21:32:03.000000000 +0200
++++ libopie2/opiecore/device/odevice_ipaq.cpp 2006-07-22 22:49:57.000000000 +0200
+@@ -31,6 +31,7 @@
+
+ /* QT */
+ #include <qapplication.h>
++#include <qdir.h>
+ #include <qfile.h>
+ #include <qtextstream.h>
+ #include <qwindowsystem_qws.h>
+@@ -375,26 +376,19 @@
+ if ( bright < 0 )
+ bright = 0;
+
+- QString cmdline;
+-
+- switch ( model()) {
+- case Model_iPAQ_H191x:
+- if ( !bright )
+- cmdline = QString::fromLatin1( "echo 4 > /sys/class/backlight/pxafb/power");
+- else
+- cmdline = QString::fromLatin1( "echo 0 > /sys/class/backlight/pxafb/power; echo %1 > /sys/class/backlight/pxafb/brightness" ).arg( bright );
+- // No Global::shellQuote as we gurantee it to be sane
+- res = ( ::system( QFile::encodeName(cmdline) ) == 0 );
+- break;
+-
+- case Model_iPAQ_HX4700:
+- cmdline = QString::fromLatin1( "echo %1 > /sys/class/backlight/w100fb/brightness" ).arg( bright );
+- // No Global::shellQuote as we gurantee it to be sane
+- res = ( ::system( QFile::encodeName(cmdline) ) == 0 );
+- break;
+-
+-
+- default:
++ QDir sysClass( "/sys/class/backlight/" );
++ sysClass.setFilter(QDir::Dirs);
++ if ( sysClass.exists() && sysClass.count() > 2 ) {
++ QString sysClassPath = sysClass.absFilePath( sysClass[2] + "/brightness" );
++ int fd = ::open( sysClassPath, O_WRONLY|O_NONBLOCK );
++ if ( fd ) {
++ char buf[100];
++ int val = bright * displayBrightnessResolution() / 255;
++ int len = ::snprintf( &buf[0], sizeof buf, "%d", val );
++ res = ( ::write( fd, &buf[0], len ) == 0 );
++ ::close( fd );
++ }
++ } else {
+ if (( fd = ::open ( "/dev/touchscreen/0", O_WRONLY )) >= 0 ) {
+ FLITE_IN bl;
+ bl. mode = 1;
+@@ -409,6 +403,22 @@
+
+ int iPAQ::displayBrightnessResolution() const
+ {
++ int res = 16;
++
++ QDir sysClass( "/sys/class/backlight/" );
++ sysClass.setFilter(QDir::Dirs);
++ if ( sysClass.exists() && sysClass.count() > 2 ) {
++ QString sysClassPath = sysClass.absFilePath( sysClass[2] + "/max_brightness" );
++ int fd = ::open( sysClassPath, O_RDONLY|O_NONBLOCK );
++ if ( fd ) {
++ char buf[100];
++ if ( ::read( fd, &buf[0], sizeof buf ) )
++ ::sscanf( &buf[0], "%d", &res );
++ ::close( fd );
++ }
++ return res;
++ }
++
+ switch ( model()) {
+ case Model_iPAQ_H31xx:
+ case Model_iPAQ_H36xx:
+@@ -434,22 +444,35 @@
+ {
+ bool res = false;
+
+- QString cmdline;
+-
+- if ( model() == Model_iPAQ_H191x ) {
+- cmdline = QString::fromLatin1( "echo %1 > /sys/class/lcd/pxafb/power; echo %2 > /sys/class/backlight/pxafb/power").arg( on ? "0" : "4" ).arg( on ? "0" : "4" );
++ QDir sysClass( "/sys/class/lcd/" );
++ sysClass.setFilter(QDir::Dirs);
++ if ( sysClass.exists() && sysClass.count() > 2 ) {
++ QString sysClassPath = sysClass.absFilePath( sysClass[2] + "/power" );
++ int fd = ::open( sysClassPath, O_WRONLY|O_NONBLOCK );
++ if ( fd ) {
++ char buf[10];
++ buf[0] = on ? 0 : 4;
++ buf[1] = '\0';
++ res = ( ::write( fd, &buf[0], 2 ) == 0 );
++ ::close( fd );
++ }
+ } else {
+- return OAbstractMobileDevice::setDisplayStatus(on);
++ res = OAbstractMobileDevice::setDisplayStatus(on);
+ }
+
+- res = ( ::system( QFile::encodeName(cmdline) ) == 0 );
+-
+ return res;
+ }
+
+ bool iPAQ::hasLightSensor() const
+ {
+- return true;
++ switch ( model()) {
++ case Model_iPAQ_H191x:
++ case Model_iPAQ_H22xx:
++ return false;
++
++ default:
++ return true;
++ }
+ }
+
+ int iPAQ::readLightSensor()