// wdfiotarget.h
typedef enum _WDF_IO_TARGET_SENT_IO_ACTION {
WdfIoTargetSentIoUndefined = 0,
WdfIoTargetCancelSentIo,
WdfIoTargetWaitForSentIoToComplete,
WdfIoTargetLeaveSentIoPending
} WDF_IO_TARGET_SENT_IO_ACTION;
View the official Windows Driver Kit DDI reference
// wudfddi_types.h
typedef enum _WDF_IO_TARGET_SENT_IO_ACTION {
WdfIoTargetSentIoUndefined,
WdfIoTargetCancelSentIo,
WdfIoTargetWaitForSentIoToComplete,
WdfIoTargetLeaveSentIoPending,
WdfIoTargetSentIoMaximum
} WDF_IO_TARGET_SENT_IO_ACTION;
View the official Windows Driver Kit DDI reference
No description available.
[Applies to KMDF and UMDF]
The WDF_IO_TARGET_SENT_IO_ACTION enumeration identifies the actions that the framework can take when a driver calls WdfIoTargetStop to stop an I/O target.
WdfIoTargetSentIoUndefined:0
Reserved for system use.
WdfIoTargetCancelSentIo
Before the framework stops the I/O target, it will attempt to cancel I/O requests that are in the I/O target's queue. The framework cancels all of the target queue's I/O requests, and waits for all I/O requests to complete, before WdfIoTargetStop returns. The framework also attempts to cancel I/O requests that have left the I/O target's queue and entered lower drivers.
WdfIoTargetWaitForSentIoToComplete
Before the framework stops the I/O target, it will wait for I/O requests that are in the I/O target's queue to be completed. The framework completes all of the target queue's I/O requests, and calls each request's CompletionRoutine callback function, before WdfIoTargetStop returns.
WdfIoTargetLeaveSentIoPending
The framework will leave I/O requests in the I/O target's queue. The requests remain in the target's queue until the driver calls WdfIoTargetStart or the device is removed.
The WDF_IO_TARGET_SENT_IO_ACTION enumeration is used as an input parameter to the WdfIoTargetStop method.
If your driver specifies the WdfIoTargetWaitForSentIoToComplete flag, the driver must not call WdfIoTargetStop from a request handler, a CompletionRoutine callback function, or an EvtUsbTargetPipeReadersFailed callback function.
For the UMDF version of this enumeration, see WDF_IO_TARGET_SENT_IO_ACTION (UMDF).
[Warning: UMDF 2 is the latest version of UMDF and supersedes UMDF 1. All new UMDF drivers should be written using UMDF 2. No new features are being added to UMDF 1 and there is limited support for UMDF 1 on newer versions of Windows 10. Universal Windows drivers must use UMDF 2. For more info, see Getting Started with UMDF.]
The WDF_IO_TARGET_SENT_IO_ACTION enumeration identifies the actions that the framework can take when a driver calls IWDFIoTargetStateManagement::Stop or IWDFRemoteTarget::Stop to stop an I/O target.
WdfIoTargetSentIoUndefined
Reserved for system use.
WdfIoTargetCancelSentIo
Before the framework stops the I/O target, it will attempt to cancel I/O requests that are in the I/O target's queue. The framework cancels all of the target queue's I/O requests before IWDFIoTargetStateManagement::Stop or IWDFRemoteTarget::Stop returns.
WdfIoTargetWaitForSentIoToComplete
Before the framework stops the I/O target, it will wait for I/O requests that are in the I/O target's queue to be completed. The framework completes all of the target queue's I/O requests, and calls each request's IRequestCallbackRequestCompletion::OnCompletion callback function, before IWDFIoTargetStateManagement::Stop or IWDFRemoteTarget::Stop returns.
WdfIoTargetLeaveSentIoPending
The framework will leave I/O requests in the I/O target's queue. The requests remain in the target's queue until the driver calls IWDFIoTargetStateManagement::Start or IWDFRemoteTarget::Start or the device is removed.
WdfIoTargetSentIoMaximum
Valid enumeration values were exceeded.
The WDF_IO_TARGET_SENT_IO_ACTION enumeration is used as an input parameter to the IWDFIoTargetStateManagement::Stop and IWDFRemoteTarget::Stop methods.
If your driver specifies the WdfIoTargetWaitForSentIoToComplete flag, the driver must not call IWDFIoTargetStateManagement::Stop or IWDFRemoteTarget::Stop from a request handler, an IRequestCallbackRequestCompletion::OnCompletion callback function, or an IUsbTargetPipeContinuousReaderCallbackReadersFailed::OnReaderFailure callback function.
For the KMDF version of this enumeration, see WDF_IO_TARGET_SENT_IO_ACTION.
WDF_IO_TARGET_SENT_IO_ACTION