NTSTATUS
D12_ResetIrpQueue(
    IN  PDEVICE_OBJECT DeviceObject
    );

NTSTATUS
D12_CancelAllPendingIrps(
    IN  PDEVICE_OBJECT DeviceObject
	);

NTSTATUS
D12_RemovePendingIrp(
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp
	);

NTSTATUS
D12_AddPendingIrp(
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp
	);