IWDFDevice3 interface

To obtain the IWDFDevice3 interface, drivers call IWDFDevice::QueryInterface.

Members

The IWDFDevice3 interface inherits from IWDFDevice2. IWDFDevice3 also has these types of members:

Methods

The IWDFDevice3 interface has these methods.

MethodDescription
AssignS0IdleSettingsEx

The AssignS0IdleSettingsEx method provides driver-supplied information that the framework uses when a device is idle and the system is in its working (S0) state.

CreateInterrupt

The CreateInterrupt method creates a framework interrupt object.

CreateWorkItem

The CreateWorkItem method creates a framework work-item object, which can subsequently be added to the framework’s work-item queue.

GetHardwareRegisterMappedAddress

A driver calls GetHardwareRegisterMappedAddress to get the user-mode mapped address of the memory resource it earlier mapped using MapIoSpace.

MapIoSpace

The MapIoSpace method maps the given physical address range to system address space and returns a pseudo base address.

UnmapIoSpace

The UnmapIoSpace method unmaps a specified range of physical addresses previously mapped by MapIoSpace method.

 

Requirements

End of support

Unavailable in UMDF 2.0 and later.

Minimum UMDF version

1.11

Header

Wudfddi.h

DLL

WUDFx.dll

 

 

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