2.4. WDF Driver Model

The WDF driver model defines an object-oriented, event-driven environment in which driver code manages device-specific features and a Microsoft-supplied framework calls the driver to respond to events that affect operation of its device. The driver model includes the following:

• An object model that is implemented by both KMDF and UMDF.

• A Plug and Play and power management implementation that both frameworks use.

• An I/O model in which the frameworks handle interactions with the operating system and manage the flow of I/O, Plug and Play, and power management requests.

• A versioning strategy that applies to both Kernel Mode and User Mode Drivers.

• Consistent installation techniques for both Kernel Mode and User Mode Drivers.