WDF_REQUEST_REUSE_PARAMS structure (wdfrequest.h)
[Applies to KMDF and UMDF]
The WDF_REQUEST_REUSE_PARAMS structure specifies information that is associated with a reused I/O request.
Syntax
typedef struct _WDF_REQUEST_REUSE_PARAMS {
ULONG Size;
ULONG Flags;
NTSTATUS Status;
PIRP NewIrp;
} WDF_REQUEST_REUSE_PARAMS, *PWDF_REQUEST_REUSE_PARAMS;
Members
Size
The size, in bytes, of this structure.
Flags
A bitwise OR of one or more WDF_REQUEST_REUSE_FLAGS-typed flags.
Status
An NTSTATUS value that the framework assigns to the request.
NewIrp
A pointer to an IRP structure. This member's value is optional and can be NULL.
Remarks
The WDF_REQUEST_REUSE_PARAMS structure is used as input to WdfRequestReuse.
To initialize this structure, the driver must call WDF_REQUEST_REUSE_PARAMS_INIT. To set a NewIrp value in the structure, the driver must call WDF_REQUEST_REUSE_PARAMS_SET_NEW_IRP after calling WDF_REQUEST_REUSE_PARAMS_INIT.
If a lower driver needs to access the Status value, it can find it in the Irp->IoStatus.Status field.
You can set a NewIrp value only if the I/O request that you supply to WdfRequestReuse was created by calling WdfRequestCreate or WdfRequestCreateFromIrp.
Requirements
| Requirement | Value |
|---|---|
| Minimum KMDF version | 1.0 |
| Minimum UMDF version | 2.0 |
| Header | wdfrequest.h (include Wdf.h) |