misc.c File Reference

#include "parport.h"

Include dependency graph for misc.c:

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Functions
NTSTATUS NTAPI	ForwardIrpAndForget (IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
PVOID	GetUserBuffer (IN PIRP Irp)

Function Documentation

ForwardIrpAndForget()

NTSTATUS NTAPI ForwardIrpAndForget	(	IN PDEVICE_OBJECT	DeviceObject,
		IN PIRP	Irp
	)

Definition at line 15 of file misc.c.

{
    PDEVICE_OBJECT LowerDevice;
 
    if (((PFDO_DEVICE_EXTENSION)DeviceObject->DeviceExtension)->Common.IsFDO)
        LowerDevice = ((PFDO_DEVICE_EXTENSION)DeviceObject->DeviceExtension)->LowerDevice;
    else
        LowerDevice = ((PPDO_DEVICE_EXTENSION)DeviceObject->DeviceExtension)->AttachedFdo;
    ASSERT(LowerDevice);
 
    IoSkipCurrentIrpStackLocation(Irp);
    return IoCallDriver(LowerDevice, Irp);
}

GetUserBuffer()

PVOID GetUserBuffer

(

IN PIRP

Irp

)

Definition at line 32 of file misc.c.

{
    ASSERT(Irp);
 
    if (Irp->MdlAddress)
        return Irp->MdlAddress;
    else
        return Irp->AssociatedIrp.SystemBuffer;
}

Referenced by PdoWrite().