changed access method for lcd sys params of ipaq h191x and mypal a716 based on Slavek Banko patch

2 files changed, 78 insertions, 28 deletions

diff --git a/libopie2/opiecore/device/odevice_ipaq.cpp b/libopie2/opiecore/device/odevice_ipaq.cpp
index e6e3145..63b60a7 100644
--- a/libopie2/opiecore/device/odevice_ipaq.cpp
+++ b/libopie2/opiecore/device/odevice_ipaq.cpp
@@ -31,6 +31,7 @@
 
 /* QT */
 #include <qapplication.h>
+#include <qdir.h>
 #include <qfile.h>
 #include <qtextstream.h>
 #include <qwindowsystem_qws.h>
@@ -379,12 +380,30 @@ bool iPAQ::setDisplayBrightness ( int bright )
 
     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 );
+        {
+            QDir sysClass( "/sys/class/backlight/pxafb/" );
+            sysClass.setFilter(QDir::Dirs);
+            int fd;
+            if ( sysClass.exists() ) {
+                QString sysClassPath = sysClass.absFilePath( "/sys/class/backlight/pxafb/power" );
+                fd = ::open( sysClassPath, O_WRONLY | O_NONBLOCK );
+                if ( fd ) {
+                    char buf[10];
+                    buf[0] = bright ? 0 : 4;
+                    buf[1] = '\0';
+                    res = ( ::write( fd, &buf[0], 2 ) == 0 );
+                    ::close( fd );
+                }
+                sysClassPath = sysClass.absFilePath( "/sys/class/backlight/pxafb/brightness" );
+                fd = ::open( sysClassPath, O_WRONLY | O_NONBLOCK );
+                if ( fd ) {
+                    char buf[100];
+                    int len = ::snprintf( &buf[0], sizeof buf, "%d", bright );
+                    res = ( ::write( fd, &buf[0], len ) == 0 );
+                    ::close( fd );
+                }
+            }
+        }
         break; 
         
     case Model_iPAQ_HX4700:
@@ -437,7 +456,20 @@ bool iPAQ::setDisplayStatus ( bool on )
     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/pxafb/" );
+        sysClass.setFilter(QDir::Dirs);
+        if ( sysClass.exists() ) {
+            QString sysClassPath = sysClass.absFilePath( "/sys/class/lcd/pxafb/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 );
+            }
+        }
+        return res;
     } else {
         return OAbstractMobileDevice::setDisplayStatus(on);
     }
@@ -449,8 +481,13 @@ bool iPAQ::setDisplayStatus ( bool on )
 
 bool iPAQ::hasLightSensor() const
 {
+    switch (model()) {
+        case Model_iPAQ_H191x:
+            return false;
+        default:
     return true;
 }
+}
 
 int iPAQ::readLightSensor()
 {
diff --git a/libopie2/opiecore/device/odevice_mypal.cpp b/libopie2/opiecore/device/odevice_mypal.cpp
index 7e1245a..7eb8d1d 100644
--- a/libopie2/opiecore/device/odevice_mypal.cpp
+++ b/libopie2/opiecore/device/odevice_mypal.cpp
@@ -31,6 +31,7 @@
 
 /* QT */
 #include <qapplication.h>
+#include <qdir.h>
 #include <qfile.h>
 #include <qtextstream.h>
 #include <qwindowsystem_qws.h>
@@ -206,19 +207,27 @@ bool MyPal::setDisplayBrightness ( int bright )
     if ( bright < 0 )
         bright = 0;
 
-    QString cmdline;
-
-    switch ( model()) {
-    case Model_MyPal_716:
-        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; 
-    default:
-        res = OAbstractMobileDevice::setDisplayBrightness(bright);
+    QDir sysClass( "/sys/class/backlight/pxafb/" );
+    sysClass.setFilter(QDir::Dirs);
+    int fd;
+    if ( sysClass.exists() ) {
+        QString sysClassPath = sysClass.absFilePath( "/sys/class/backlight/pxafb/power" );
+        fd = ::open( sysClassPath, O_WRONLY | O_NONBLOCK );
+        if ( fd ) {
+            char buf[10];
+            buf[0] = bright ? 0 : 4;
+            buf[1] = '\0';
+            res = ( ::write( fd, &buf[0], 2 ) == 0 );
+            ::close( fd );
+        }
+        sysClassPath = sysClass.absFilePath( "/sys/class/backlight/pxafb/brightness" );
+        fd = ::open( sysClassPath, O_WRONLY | O_NONBLOCK );
+        if ( fd ) {
+            char buf[100];
+            int len = ::snprintf( &buf[0], sizeof buf, "%d", bright );
+            res = ( ::write( fd, &buf[0], len ) == 0 );
+            ::close( fd );
+        }
     }
 
     return res;
@@ -238,15 +247,19 @@ bool MyPal::setDisplayStatus ( bool on )
 {
     bool res = false;
 
-    QString cmdline;
-
-    if ( model() == Model_MyPal_716 ) {
-        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" );
-    } else {
-        return OAbstractMobileDevice::setDisplayStatus(on);
+    QDir sysClass( "/sys/class/lcd/" );
+    sysClass.setFilter(QDir::Dirs);
+    if ( sysClass.exists() ) {
+        QString sysClassPath = sysClass.absFilePath( "/sys/class/lcd/pxafb/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 );
+        }
     }
-
-    res = ( ::system( QFile::encodeName(cmdline) ) == 0 );
 
     return res;
 }