The second part of the book provides design information that is specific to the type of driver:
Chapter 15, Drivers for Character Devices describes drivers for character-oriented devices.
Chapter 16, Drivers for Block Devices describes drivers for a block-oriented devices.
Chapter 17, SCSI Target Drivers outlines the Sun Common SCSI Architecture (SCSA) and the requirements for SCSI target drivers.
Chapter 18, SCSI Host Bus Adapter Drivers explains how to apply SCSA to SCSI Host Bus Adapter (HBA) drivers.
Chapter 19, Drivers for Network Devices describes the Generic LAN driver (GLD). The GLDv3 framework is a function calls-based interface of MAC plugins and MAC driver service routines and structures.
Chapter 20, USB Drivers describes how to write a client USB device driver using the USBA 2.0 framework.