Windows Driver Foundation (WDF) is the Microsoft unified driver model. It supports the creation of object-oriented kernel-mode and user-mode drivers for Windows. By using WDF, driver engineers can focus on their device hardware, instead of on the operating system. WDF simplifies driver development and maintenance in a number of ways, including:
Managing most interactions with the operating system, Enabling a broader range of devices to be supported by user-mode drivers.
Supporting a robust, well-designed object model, Providing intelligent default handling for common features such as Plug and Play and power management, Reducing the occurrence of common race conditions.
WDF consists of two components, the kernel-mode driver framework (KMDF) and the user-mode driver framework (UMDF), which are used to implement kernel-mode or user-mode drivers, respectively. It also includes several related testing and debugging tools.
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An embedded awareness & advanced training Group
Prerequisites:
Participants will need to be familiar with the Component Object Model (COM) to the extent of being able to write simple in-process COM server and client applications.
These topics are very heavy and participants must be capable of sustaining the information overload if these are to be covered in detail!
Day 1 – Introduction to Windows Driver Development and the WDF
Introduction to Windows Driver Development
Brief Overview of WDM
WDM Concepts for WDF
Driver Types
Device and Driver Stacks
I/O Request Packets (IRPs)
Quick Introduction to WDF
Kernel Mode Driver Framework (KMDF)
User Mode Driver Framework (UMDF)
Differences between KMDF and UMDF
When to use KMDF and UMDF?
Examples of devices suitable for KMDF and UMDF
Requirements of A Simple WDF Driver
Code walkthrough of WDM and WDF drivers for comparison
Day 2 – The Kernel Mode Driver Framework
Interactions between the KMDF and drivers
Introducing the Basic KMDF Objects
Introducing the Special KMDF Objects
Framework Object Lifecycle
The Object Context Space
Handling I/O Requests
Processing an I/O Request
Handling Operations on File Objects
Using I/O Targets
Using Interrupts, Timers and Memory Buffers
Day 3 – The User Mode Driver Framework
Introducing the UMDF and benefits of UMDF drivers
Supported devices and device classes
UMDF Architecture and the use of Component Object Model (COM)*
Key Elements – Driver host process, Reflector, Driver Manager
