Essential Linux Device Drivers

Chapter 11. Universal Serial Bus

In This Chapter

• USB Architecture
• Linux-USB Subsystem
• Driver Data Structures
• Enumeration
• Device Example: Telemetry Card
• Class Drivers
• Gadget Drivers
• Debugging
• Looking at the Sources

Universal serial bus (USB) is the de facto external bus in today’s computers. USB, with its support for hotplugging, generic class drivers, and versatile data-transfer modes, is the usual route in the consumer electronics space to bring a diverse spectrum of technologies to computer systems. Its sweeping popularity and the accompanying economics of volume have played a part in fueling the adoption and acceptance of computer peripheral technologies around the world.

USB Architecture

USB is a master-slave protocol where a host controller ...