2 files changed, 20 insertions, 4 deletions

diff --git a/libopie2/opiecore/oinputsystem.cpp b/libopie2/opiecore/oinputsystem.cpp
index bfdc31f..fde36c3 100644
--- a/libopie2/opiecore/oinputsystem.cpp
+++ b/libopie2/opiecore/oinputsystem.cpp
@@ -36,13 +36,18 @@ using namespace Opie::Core;
 #include <errno.h>
 #include <string.h>
 #include <linux/input.h>
 #include <sys/fcntl.h>
 #include <sys/ioctl.h>
 
-#define BUFSIZE 256
+#define     BUFSIZE 256
+#define     BIT_MASK( name, numbits )                                        \
+    unsigned short  name[ ((numbits) - 1) / (sizeof( short ) * 8) + 1 ];    \
+    memset( name, 0, sizeof( name ) )
+#define     BIT_TEST( bitmask, bit )    \
+    ( bitmask[ (bit) / sizeof(short) / 8 ] & (1u << ( (bit) % (sizeof(short) * 8))) )
 
 /*======================================================================================
  * OInputSystem
  *======================================================================================*/
 
 OInputSystem* OInputSystem::_instance = 0;
@@ -137,6 +142,16 @@ QString OInputDevice::uniq() const
 {
     char buf[BUFSIZE] = "<unknown>";
     ::ioctl( _fd, EVIOCGUNIQ(sizeof buf), buf );
     return buf;
 }
 
+bool OInputDevice::hasFeature( Feature bit ) const
+{
+    BIT_MASK( features, EV_MAX );
+            
+    if( ioctl( _fd, EVIOCGBIT( 0, EV_MAX ), features) < 0 )
+        return false;
+    else
+        return BIT_TEST( features, bit );
+}
+
diff --git a/libopie2/opiecore/oinputsystem.h b/libopie2/opiecore/oinputsystem.h
index 350656b..4d913a1 100644
--- a/libopie2/opiecore/oinputsystem.h
+++ b/libopie2/opiecore/oinputsystem.h
@@ -90,20 +90,20 @@ class OInputSystem : public QObject
 
 
 class OInputDevice : public QObject
 {  
   public:
     
-    enum EventType
+    enum Feature
     {
         Synchronous     = EV_SYN,
-        Keyboard        = EV_KEY,
+        Keys            = EV_KEY,
         Relative        = EV_REL,
         Absolute        = EV_ABS,
         Miscellaneous   = EV_MSC,
-        Led             = EV_LED,
+        Leds            = EV_LED,
         Sound           = EV_SND,
         AutoRepeat      = EV_REP,
         ForceFeedback   = EV_FF,
         PowerManagement = EV_PWR,
         ForceFeedbackStatus = EV_FF_STATUS,
     };
@@ -131,12 +131,13 @@ class OInputDevice : public QObject
     ~OInputDevice();
     
   public:
     QString identity() const;
     QString path() const;
     QString uniq() const;
+    bool    hasFeature( Feature ) const;
     
   private:
     int _fd;
     input_id _id;
 
 };