WDF_REQUEST_REUSE_PARAMS_SET_NEW_IRP function (wdfrequest.h)

Artikel
02/22/2024

[Applies to KMDF and UMDF]

The WDF_REQUEST_REUSE_PARAMS_SET_NEW_IRP function sets a new IRP in a driver's WDF_REQUEST_REUSE_PARAMS structure.

Syntax

void WDF_REQUEST_REUSE_PARAMS_SET_NEW_IRP(
  [in, out] PWDF_REQUEST_REUSE_PARAMS Params,
  [in]      PIRP                      NewIrp
);

Parameters

[in, out] Params

A pointer to a caller-supplied WDF_REQUEST_REUSE_PARAMS structure.

[in] NewIrp

A pointer to a caller-supplied IRP structure.

Return value

None

Remarks

If a driver's call to WdfRequestReuse specifies a new IRP structure, the driver must first call WDF_REQUEST_REUSE_PARAMS_INIT and then call WDF_REQUEST_REUSE_PARAMS_SET_NEW_IRP to initialize a WDF_REQUEST_REUSE_PARAMS structure.

The WDF_REQUEST_REUSE_PARAMS_SET_NEW_IRP function sets the structure's NewIrp member to the specified IRP pointer. It also sets the WDF_REQUEST_REUSE_SET_NEW_IRP flag in the structure's Flag member.

Examples

The following code example initializes a WDF_REQUEST_REUSE_PARAMS structure, provides a new IRP structure for the I/O request, and then calls WdfRequestReuse.

WDF_REQUEST_REUSE_PARAMS  params;
NTSTATUS  status;
PIRP  myIrp;
...
WDF_REQUEST_REUSE_PARAMS_INIT(
                              &params,
                              WDF_REQUEST_REUSE_NO_FLAGS,
                              STATUS_SUCCESS
                              );
WDF_REQUEST_REUSE_PARAMS_SET_NEW_IRP(
                                     &params,
                                     myIrp
                                     );
status = WdfRequestReuse(
                         Request,
                         &params
                         );
...

Requirements

Requirement	Value
Target Platform	Universal
Minimum KMDF version	1.0
Minimum UMDF version	2.0
Header	wdfrequest.h (include Wdf.h)

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