Make the settings dialog aware of the presence of kernel-config

diff --git a/src/settings.cpp b/src/settings.cpp
index 23eab34..eaa72f1 100644 (file)
--- a/src/settings.cpp
+++ b/src/settings.cpp
@@ -41,16 +41,20 @@ Settings::Settings(QWidget *parent) :
     overclocking = settings.value("main/overclocking", false).toBool();
     advancedTemperature = settings.value("main/advanced_temperature", false).toBool();
 
-    /* The next few lines of code check if QCPUFreq is running on a power kernel.
+    /* The next few lines of code check if QCPUFreq is running on a power kernel and if
+     * the kernel-config script is installed.
+     *
      * Basically we get the maximum available frequency - if it is greater than
      * DEFAULT_FREQUENCY we can be sure that the current kernel is a power kernel.
      */
     QFile file( "/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies" );
 
+    powerKernel = false;
+    kernelConfigInstalled = false;
+
     //open the file
     if ( !file.exists() || !file.open( QIODevice::ReadOnly ) ) {
         QMessageBox::critical(this, tr("QCPUFreq"), tr("Could not get information from /sys!"));
-        powerKernel = false;
     } else {
         //read the file
         QTextStream in( &file );
@@ -62,8 +66,12 @@ Settings::Settings(QWidget *parent) :
 
         if (maxFreq > DEFAULT_FREQUENCY) {
             powerKernel = true;
-        } else {
-            powerKernel = false;
+        }
+
+        //Check if kernel-config is installed
+        file.setFileName("/usr/sbin/kernel-config");
+        if (file.exists()) {
+            kernelConfigInstalled = true;
         }
     }
 
@@ -87,6 +95,15 @@ Settings::~Settings()
 
 
 /**
+  * Returns True if the kernel-config script is installed.
+  */
+bool Settings::isKernelConfigInstalled()
+{
+    return kernelConfigInstalled;
+}
+
+
+/**
   * Returns true if we are on a Maemo 5 OS.
   */
 bool Settings::platformMaemo()

diff --git a/src/settings.h b/src/settings.h
index 0ab3179..87c8463 100644 (file)
--- a/src/settings.h
+++ b/src/settings.h
@@ -33,6 +33,7 @@ class Settings : public QDialog
 public:
     explicit Settings(QWidget *parent = 0);
     ~Settings();
+    bool isKernelConfigInstalled();
     bool platformMaemo();
     bool useAdvancedTemperature();
     bool useAutoRotate();
@@ -52,6 +53,7 @@ private:
     bool autoRotate;
     bool overclocking;
     bool powerKernel;
+    bool kernelConfigInstalled;
     QSettings settings;
     Ui::Settings *ui;
 };