信息
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WDF_REQUEST_FORWARD_OPTIONS 结构

The WDF_REQUEST_FORWARD_OPTIONS structure contains options for requeuing an I/O request from a child device's I/O queue to the parent device's I/O queue.

语法


typedef struct _WDF_REQUEST_FORWARD_OPTIONS {
  ULONG Size;
  ULONG Flags;
} WDF_REQUEST_FORWARD_OPTIONS, *PWDF_REQUEST_FORWARD_OPTIONS;

成员

Size

The size, in bytes, of this structure.

Flags

A bitwise OR of WDF_REQUEST_FORWARD_OPTIONS_FLAGS-typed flags.

评论

The WDF_REQUEST_FORWARD_OPTIONS structure is used as input to the WdfRequestForwardToParentDeviceIoQueue method.

Your driver must call WDF_REQUEST_FORWARD_OPTIONS_INIT to initialize the WDF_REQUEST_FORWARD_OPTIONS structure before the driver calls WdfRequestForwardToParentDeviceIoQueue.

要求

版本

Available in version 1.9 and later versions of KMDF.

标头

Wdfrequest.h (包括Wdf.h)

另请参见

WDF_REQUEST_FORWARD_OPTIONS_FLAGS

 

 

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