........................Which is the Microsoft strategy for the next generation of Microsoft® Windows® drivers. WDF addresses driver reliability problems and simplifies the development and support of Windows drivers.
WDF includes several components:
• Kernel-mode driver framework
• User-mode driver framework
• Driver verification tools
From the Windows Driver Foundation white paper
User-Mode Driver Framework
The user-mode driver framework implements a subset of the kernel-mode framework functionality, including support for Plug and Play, power management, and asynchronous I/O.
Using the user-mode framework, developers can create drivers for network-connected devices and some USB devices, such as portable media players, cameras, and cell phones. Although these drivers run in user mode, they will be standard Plug and Play drivers that the system finds and installs in the same way as kernel-mode Plug and Play drivers.
The user-mode driver framework will be supported on Windows Longhorn.
*www.microsoft.com/windows/windowsmedia/mp10/devicesupport.aspx
*www.microsoft.com/whdc/driver/wdf/wdf-intro.mspx