Diffstat (limited to 'libopie2/opiecore/oinputsystem.cpp') (more/less context) (show whitespace changes)
-rw-r--r-- | libopie2/opiecore/oinputsystem.cpp | 15 |
1 files changed, 15 insertions, 0 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 @@ -41,4 +41,9 @@ using namespace Opie::Core; #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))) ) /*====================================================================================== @@ -141,2 +146,12 @@ QString OInputDevice::uniq() const } +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 ); +} + |