[Bug 20012] Implement HalGetBusDataByOffset for the PCIConfiguration BusDataType

http://bugs.winehq.org/show_bug.cgi?id=20012

--- Comment #4 from red-ray   2009-09-17 10:48:10 ---
The following code works well to decide is the bus exists.

stprintf( nam, TEXT( "/sys/bus/pci/devices/0000:%02x:*" ), bus );

if( ( dhl = FindFirstFile( nam , wfd ) ) != INVALID_HANDLE_VALUE )
    {
      FindClose( dhl );
      return 2;
    }

return 0;