reactos/drivers/input/mouclass/mouclass.h

   1 typedef struct _DEVICE_EXTENSION {
   2    PIO_WORKITEM WorkItem;
   3    KSPIN_LOCK SpinLock;
   4    BOOLEAN PassiveCallbackQueued;
   5    BOOLEAN ReadIsPending;
   6    ULONG InputCount;
   7    PMOUSE_INPUT_DATA PortData;
   8    PDEVICE_OBJECT PortDeviceObject; // FIXME: Expand this to handle multiple port drivers (make *PortDeviceObject)
   9    GDI_INFORMATION GDIInformation;
  10 } DEVICE_EXTENSION, *PDEVICE_EXTENSION;