Introduction Apple's adoption of open standards and support for standard peripheral families yields opportunities for both hardware and device-driver developers. • Hardware developers can take advantage of standard high-performance interfaces to develop add-on or peripheral products that extend the capabilities of the Macintosh.

• Driver developers can use the I/O Kit, Apple's object-oriented driver-development framework, to create in-kernel or application-level drivers for their own or another vendor's devices. In addition, OS X provides several services that allow applications to communicate with hardware from plug-ins, shared libraries, and other code running outside the kernel. Start Here To write code that controls a hardware device in OS X, you should: • Decide whether your code should be in the kernel or in user space. In OS X, many drivers can be written in user space.

Network kernel extensions and file systems generally must be in the kernel. • If you determine that you can write your code in user space, create matching dictionaries to match the appropriate device, then open the device. • If you determine that you must write a kernel-mode driver, determine what I/O Kit class your driver should subclass and what nubs your driver should publish (if applicable). Also create a set of matching rules to tell the kextd daemon when to load your kernel extension and create a property list file that reflects this. • Start writing code that communicates with the hardware.

To develop hardware devices for the Mac, read the relevant developer notes. To develop a network kernel extension, read.

This chapter from Developing Drivers with the Windows Driver Foundation introduces fundamental concepts for the design and implementation of WDF for UMDF and. 1.2.1 Windows XP Overview. 1.2.2 Windows 98/Windows Me Overview. 1.3 What Kind of Driver Do I Need? 1.3.1 WDM Drivers. 1.3.2 Other Types of. Learn the basics of writing an INF file to control installation, and you'll also learn some interesting and useful things to do with the system registry. Developing Drivers with the Windows ® Driver Foundation Penny Orwick Guy Smith A01T623743.fm Page 1 Thursday, March 22, 2007 9:58 AM. Developing drivers with the windows driver foundation Download developing drivers with the windows driver foundation or read online here in PDF or EPUB.

To develop a file system, read the MFSLives sample code. Choose next how you want to get started—by reading about the basics, getting your hands on some code, or diving into specific technologies. Want to get familiar with the fundamentals? • explains the pros and cons of developing in-kernel code. • in provides an overview of the OS X driver development environment. • The article in describes Darwin (the UNIX-based foundation of OS X) and other low-level technologies. • in provides guidance about what device access is available from user-space applications. Snowboard Sizing Chart Ride Of The Valkyries.

• in provides additional details for some device types. • explains how to write kernel extensions that work with network packets. Prefer to learn by example? •: Provides an example of controlling a USB device from user space code. •: Provides an overview of creating a non-I/O Kit kernel extension.

•: Provides an overview of creating an I/O Kit kernel extension. •: Provides an example of how to provide communication between a kernel-mode driver and user-space applications. •: Shows how to interpose a driver between existing driver layers.

• and: Shows how to extend Apple’s existing USB and FireWire audio drivers to add device-specific functionality. • MFSLives: Gives an example of how to add support for a local file system.

• and tcplognke: Demonstrates how to write network kernel extensions. In addition to these examples and other examples in, the provides dozens of device drivers that you can use as a starting point for understanding the I/O Kit. Want to learn how to leverage your existing code and knowledge? • provides an overview of OS X targeted at UNIX developers. As a device-driver developer, you should read the chapter in particular. • provides explanation of some of the fundamental driver constructs that OS X provides and relates them to driver architectures on other platforms. Go In Depth Sometimes you need task-focused information or answers to specific questions to get started.