Small bug fix for iPAQ only: screensaver "dim" didn't work anymore -

the backlight was already powered off at level 0

1 files changed, 2 insertions, 1 deletions

diff --git a/libopie/odevice.cpp b/libopie/odevice.cpp
index c84312e..75426f9 100644
--- a/libopie/odevice.cpp
+++ b/libopie/odevice.cpp
@@ -586,129 +586,130 @@ void iPAQ::alarmSound ( )
 		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
 }
 
 
 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;
 
 	// 128 is the maximum if you want a decent lifetime for the LCD
 	
-	bright = (int) (( ::pow ( 2, double( bright ) / 255.0 ) - 1 ) * 128.0 ); // logarithmic
+	if ( bright > 1 ) 
+		bright = (int) ( 0.5 + ( ::pow ( 2, double( bright ) / 255.0 ) - 1 ) * 128.0 ); // logarithmic
 //	bright = ( bright + 1 ) / 2;
 	
 	if ((( fd = ::open ( "/dev/ts", O_WRONLY )) >= 0 ) ||
 	    (( fd = ::open ( "/dev/h3600_ts", O_WRONLY )) >= 0 )) {
 		FLITE_IN bl;
 		bl. mode = 1;
 		bl. pwr = bright ? 1 : 0;
 		bl. brightness = bright;
 		res = ( ::ioctl ( fd, FLITE_ON, &bl ) == 0 );
 		::close ( fd );
 	}
 	return res;
 }
 
 int iPAQ::displayBrightnessResolution ( ) const
 {
 	return 255; // really 128, but logarithmic control is smoother this way
 }
 
 
 /**************************************************
  *
  * Zaurus
  *
  **************************************************/
 
 
 
 void Zaurus::init ( )
 {
 	d-> m_modelstr = "Zaurus SL5000";
 	d-> m_model = Model_Zaurus_SL5000;
 	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_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;
 	}
 
 
 	m_leds [0] = Led_Off;
 }
 
 #include <unistd.h>
 #include <fcntl.h>
 #include <sys/ioctl.h>
 
 //#include <asm/sharp_char.h> // including kernel headers is evil ...