• Other APIs That Provide Access to Hardware

• Where to Go From Here

• I/O Kit Summary

• I/O Kit Definitions

• I/O Kit Driver-Stack Building

• Device Interfaces and Device Files

• Inside the Device-Interface Mechanism

• Inside the Device-File Mechanism

• Communicating With the I/O Kit

• Finding Devices in the I/O Registry

• Device Matching

• Getting the I/O Kit Master Port

• Getting Keys and Values for a Device-Matching Dictionary

• Personality Property Keys and Values

• Examining Driver Personality Information

• Examining the I/O Registry

• Setting Up a Matching Dictionary to Find Devices

• Setting Up a Matching Dictionary to Find Device Files

• Looking Up Devices in the I/O Registry

• Getting Notifications of Device Arrival and Departure

• Examining Matching Objects

• Putting It All Together: Accessing a Device

• Getting a Device Interface

• Getting a Device-File Path

• Object Reference-Counting and Introspection

• Reference Counting

• Introspection

• Device Discovery and Notification

• Creating Matching Dictionaries

• Looking Up Devices

• Setting Up and Receiving Notifications

• Iterating Over Matching Devices

• I/O Registry Access

• Traversing the I/O Registry

• Getting Information About I/O Registry Objects

• Viewing Properties of I/O Registry Objects

• Setting Properties of I/O Registry Objects

• Determining Busy States

• Device-Interface Development

• Creating a User Space–Kernel Connection

• IOConnectMethod Functions

• Memory-Mapping Functions

• Managing the User Space–Kernel Connection

• Interpreting I/O Kit Error Return Values

• Handling Exclusive-Access Errors