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

VOID
UsbCom_Unload(
    IN PDRIVER_OBJECT DriverObject
    );

NTSTATUS
UsbCom_StartDevice(
    IN  PDEVICE_OBJECT DeviceObject
    );

NTSTATUS
UsbCom_StopDevice(
    IN  PDEVICE_OBJECT DeviceObject
    );

NTSTATUS
UsbCom_RemoveDevice(
    IN  PDEVICE_OBJECT DeviceObject
    );

NTSTATUS
UsbCom_CallUSBD(
    IN PDEVICE_OBJECT DeviceObject,
    IN PURB Urb
    );

NTSTATUS
UsbCom_PnPAddDevice(
    IN PDRIVER_OBJECT DriverObject,
    IN PDEVICE_OBJECT PhysicalDeviceObject
    );

NTSTATUS
UsbCom_CreateDeviceObject(
    IN PDRIVER_OBJECT DriverObject,
    IN PDEVICE_OBJECT PhysicalDeviceObject,
    IN PDEVICE_OBJECT *DeviceObject
    );

NTSTATUS
UsbCom_ConfigureDevice(
    IN  PDEVICE_OBJECT DeviceObject
    );

NTSTATUS
UsbCom_IrpCompletionRoutine(
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp,
    IN PVOID Context
    );

NTSTATUS
UsbCom_CapabilitiesRoutine(
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp,
    IN PVOID Context
    );

NTSTATUS
UsbCom_PoRequestCompletion(
    IN PDEVICE_OBJECT       DeviceObject,
    IN UCHAR                MinorFunction,
    IN POWER_STATE          PowerState,
    IN PVOID                Context,
    IN PIO_STATUS_BLOCK     IoStatus
    );

NTSTATUS
UsbCom_PoSelfRequestCompletion(
    IN PDEVICE_OBJECT       DeviceObject,
    IN UCHAR                MinorFunction,
    IN POWER_STATE          PowerState,
    IN PVOID                Context,
    IN PIO_STATUS_BLOCK     IoStatus
    );

NTSTATUS
UsbCom_SelfRequestPowerIrp(
    IN PDEVICE_OBJECT DeviceObject,
    IN POWER_STATE PowerState
    );

BOOLEAN
UsbCom_SetDevicePowerState(
    IN PDEVICE_OBJECT DeviceObject,
    IN DEVICE_POWER_STATE DeviceState
    );

NTSTATUS
UsbCom_PowerIrp_Complete(
    IN PDEVICE_OBJECT NullDeviceObject,
    IN PIRP Irp,
    IN PVOID Context
    );

NTSTATUS
UsbCom_QueryCapabilities(
    IN PDEVICE_OBJECT PdoDeviceObject,
    IN PDEVICE_CAPABILITIES DeviceCapabilities
    );


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


NTSTATUS
UsbCom_AbortPipes(
    IN PDEVICE_OBJECT DeviceObject
    );


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

NTSTATUS
UsbCom_SelectInterface(
    IN PDEVICE_OBJECT DeviceObject,
    IN PUSB_CONFIGURATION_DESCRIPTOR ConfigurationDescriptor
    );

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

NTSTATUS
UsbCom_ResetPipe(
    IN PDEVICE_OBJECT DeviceObject,
    IN PUSBD_PIPE_INFORMATION PipeInfo
    );


VOID
UsbCom_IncrementIoCount(
    IN PDEVICE_OBJECT DeviceObject
    );

LONG
UsbCom_DecrementIoCount(
    IN PDEVICE_OBJECT DeviceObject
    );   


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


NTSTATUS
UsbCom_StagedReadWrite(
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp,
    IN BOOLEAN Read
    );

NTSTATUS
UsbCom_SelfSuspendOrActivate(
    IN PDEVICE_OBJECT DeviceObject,
	IN BOOLEAN fSuspend
    );

NTSTATUS 
UsbCom_SymbolicLink(
    IN PDEVICE_OBJECT DeviceObject, 
	IN OUT PUNICODE_STRING deviceLinkUnicodeString
    );


BOOLEAN
UsbCom_CancelPendingIo(
    IN PDEVICE_OBJECT DeviceObject
    );

BOOLEAN
UsbCom_CanAcceptIoRequests(
    IN PDEVICE_OBJECT DeviceObject
    );

NTSTATUS
SerialGetRegistryKeyValue (IN HANDLE Handle, IN PWCHAR KeyNameString,
                           IN ULONG KeyNameStringLength, IN PVOID Data,
                           IN OUT PULONG DataLength);

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

NTSTATUS
UsbCom_SendVendor(
    IN  PDEVICE_OBJECT DeviceObject,
	IN	UCHAR Request,
	IN	USHORT Value
    );
/*
NTSTATUS
UsbCom_SendVendor(
	IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp,
	IN	UCHAR Request,
	IN	USHORT Value
	);
*/

NTSTATUS
StartInterruptUrb(
	PDEVICE_EXTENSION Extension
	);

NTSTATUS
OnInterrupt(
	PDEVICE_OBJECT junk,
	PIRP Irp,
	PDEVICE_EXTENSION Extension
	);

NTSTATUS
StartReadUrb(
	PDEVICE_EXTENSION Extension
	);

NTSTATUS
OnReadInterrupt(
	PDEVICE_OBJECT junk,
	PIRP Irp,
	PDEVICE_EXTENSION Extension
	);

NTSTATUS
StartWriteUrb(
	PDEVICE_EXTENSION Extension
	);

NTSTATUS
OnWriteInterrupt(
	PDEVICE_OBJECT junk,
	PIRP Irp,
	PDEVICE_EXTENSION Extension
	);

VOID
TransferData(
	IN PDEVICE_EXTENSION DeviceExtension,
	IN ULONG DataLength
	);

VOID
TransmitData(
	IN PDEVICE_EXTENSION DeviceExtension
	);

#endif // already included

//////////////////////////////////////////////
//	Procedure definitions from serial.sys	//
//////////////////////////////////////////////

typedef
NTSTATUS
(*PSERIAL_START_ROUTINE) (
    IN PDEVICE_EXTENSION
    );

typedef
VOID
(*PSERIAL_GET_NEXT_ROUTINE) (
    IN PIRP *CurrentOpIrp,
    IN PLIST_ENTRY QueueToProcess,
    OUT PIRP *NewIrp,
    IN BOOLEAN CompleteCurrent,
    PDEVICE_EXTENSION Extension
    );

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

NTSTATUS
SerialStartRead(
    IN PDEVICE_EXTENSION Extension
    );

VOID
SerialCompleteRead(
    IN PKDPC Dpc,
    IN PVOID DeferredContext,
    IN PVOID SystemContext1,
    IN PVOID SystemContext2
    );

VOID
SerialReadTimeout(
    IN PKDPC Dpc,
    IN PVOID DeferredContext,
    IN PVOID SystemContext1,
    IN PVOID SystemContext2
    );
/*
NTSTATUS
DriverEntry(
           IN PDRIVER_OBJECT DriverObject,
           IN PUNICODE_STRING RegistryPath
           );
*/
VOID
SerialIntervalReadTimeout(
    IN PKDPC Dpc,
    IN PVOID DeferredContext,
    IN PVOID SystemContext1,
    IN PVOID SystemContext2
    );
/*
NTSTATUS
SerialFlush(
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp
    );
*/
NTSTATUS
SerialWrite(
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp
    );

NTSTATUS
SerialStartWrite(
    IN PDEVICE_EXTENSION Extension
    );

VOID
SerialGetNextWrite(
    IN PIRP *CurrentOpIrp,
    IN PLIST_ENTRY QueueToProcess,
    IN PIRP *NewIrp,
    IN BOOLEAN CompleteCurrent,
    IN PDEVICE_EXTENSION Extension
    );

VOID
SerialCompleteWrite(
    IN PKDPC Dpc,
    IN PVOID DeferredContext,
    IN PVOID SystemContext1,
    IN PVOID SystemContext2
    );

BOOLEAN
SerialProcessEmptyTransmit(
    IN PVOID Context
    );

VOID
SerialWriteTimeout(
    IN PKDPC Dpc,
    IN PVOID DeferredContext,
    IN PVOID SystemContext1,
    IN PVOID SystemContext2
    );


BOOLEAN
SerialSetDTR(
    IN PVOID Context
    );

BOOLEAN
SerialClrDTR(
    IN PVOID Context
    );

BOOLEAN
SerialSetRTS(
    IN PVOID Context
    );

BOOLEAN
SerialClrRTS(
    IN PVOID Context
    );

BOOLEAN
SerialSetChars(
    IN PVOID Context
    );

BOOLEAN
SerialSetBaud(
    IN PVOID Context
    );

BOOLEAN
SerialSetLineControl(
    IN PVOID Context
    );

BOOLEAN
SerialSetupNewHandFlow(
    IN PDEVICE_EXTENSION Extension,
    IN PSERIAL_HANDFLOW NewHandFlow
    );

BOOLEAN
SerialSetHandFlow(
    IN PVOID Context
    );

BOOLEAN
SerialTurnOnBreak(
    IN PVOID Context
    );

BOOLEAN
SerialTurnOffBreak(
    IN PVOID Context
    );

BOOLEAN
SerialPretendXoff(
    IN PVOID Context
    );

BOOLEAN
SerialPretendXon(
    IN PVOID Context
    );

VOID
SerialHandleReducedIntBuffer(
    IN PDEVICE_EXTENSION Extension
    );

VOID
SerialProdXonXoff(
    IN PDEVICE_EXTENSION Extension,
    IN BOOLEAN SendXon
    );


NTSTATUS
SerialStartMask(
    IN PDEVICE_EXTENSION Extension
    );

VOID
SerialCancelWait(
    IN PDEVICE_OBJECT DeviceObject,
    IN PIRP Irp
    );

VOID
SerialCompleteWait(
    IN PKDPC Dpc,
    IN PVOID DeferredContext,
    IN PVOID SystemContext1,
    IN PVOID SystemContext2
    );

/*
VOID
SerialStartImmediate(
    IN PSERIAL_DEVICE_EXTENSION Extension
    );

VOID
SerialCompleteImmediate(
    IN PKDPC Dpc,
    IN PVOID DeferredContext,
    IN PVOID SystemContext1,
    IN PVOID SystemContext2
    );

VOID
SerialTimeoutImmediate(
    IN PKDPC Dpc,
    IN PVOID DeferredContext,
    IN PVOID SystemContext1,
    IN PVOID SystemContext2
    );
*/
VOID
SerialTimeoutXoff(
    IN PKDPC Dpc,
    IN PVOID DeferredContext,
    IN PVOID SystemContext1,
    IN PVOID SystemContext2
    );

VOID
SerialCompleteXoff(
    IN PKDPC Dpc,
    IN PVOID DeferredContext,
    IN PVOID SystemContext1,
    IN PVOID SystemContext2
    );

NTSTATUS
SerialStartPurge(
    IN PDEVICE_EXTENSION Extension
    );

BOOLEAN
SerialPurgeInterruptBuff(
    IN PVOID Context
    );


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

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

VOID
SerialKillAllReadsOrWrites(
    IN PDEVICE_OBJECT DeviceObject,
    IN PLIST_ENTRY QueueToClean,
    IN PIRP *CurrentOpIrp
    );

VOID
SerialGetNextIrp(
    IN PIRP *CurrentOpIrp,
    IN PLIST_ENTRY QueueToProcess,
    OUT PIRP *NextIrp,
    IN BOOLEAN CompleteCurrent,
    IN PDEVICE_EXTENSION extension
    );

VOID
SerialGetNextIrpLocked(IN PIRP *CurrentOpIrp, IN PLIST_ENTRY QueueToProcess,
                       OUT PIRP *NextIrp, IN BOOLEAN CompleteCurrent,
                       IN PDEVICE_EXTENSION extension, IN KIRQL OldIrql);

VOID
SerialTryToCompleteCurrent(
    IN PDEVICE_EXTENSION Extension,
    IN PKSYNCHRONIZE_ROUTINE SynchRoutine OPTIONAL,
    IN KIRQL IrqlForRelease,
    IN NTSTATUS StatusToUse,
    IN PIRP *CurrentOpIrp,
    IN PLIST_ENTRY QueueToProcess,
    IN PKTIMER IntervalTimer,
    IN PKTIMER TotalTimer,
    IN PSERIAL_START_ROUTINE Starter,
    IN PSERIAL_GET_NEXT_ROUTINE GetNextIrp,
    IN LONG RefType
    );


NTSTATUS
SerialStartOrQueue(
    IN PDEVICE_EXTENSION Extension,
    IN PIRP Irp,
    IN PLIST_ENTRY QueueToExamine,
    IN PIRP *CurrentOpIrp,
    IN PSERIAL_START_ROUTINE Starter
    );

VOID
SerialCancelQueued(
    PDEVICE_OBJECT DeviceObject,