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42 lines
1,013 B
C
42 lines
1,013 B
C
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: Parallel Port Function Driver
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* FILE: drivers/parallel/parport/misc.c
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* PURPOSE: Miscellaneous functions
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*/
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#include "parport.h"
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/* FUNCTIONS ****************************************************************/
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NTSTATUS
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NTAPI
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ForwardIrpAndForget(IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp)
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{
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PDEVICE_OBJECT LowerDevice;
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if (((PFDO_DEVICE_EXTENSION)DeviceObject->DeviceExtension)->Common.IsFDO)
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LowerDevice = ((PFDO_DEVICE_EXTENSION)DeviceObject->DeviceExtension)->LowerDevice;
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else
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LowerDevice = ((PPDO_DEVICE_EXTENSION)DeviceObject->DeviceExtension)->AttachedFdo;
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ASSERT(LowerDevice);
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IoSkipCurrentIrpStackLocation(Irp);
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return IoCallDriver(LowerDevice, Irp);
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}
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PVOID
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GetUserBuffer(IN PIRP Irp)
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{
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ASSERT(Irp);
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if (Irp->MdlAddress)
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return Irp->MdlAddress;
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else
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return Irp->AssociatedIrp.SystemBuffer;
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}
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/* EOF */
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