Writing Device Drivers provides information on developing drivers for character-oriented devices, block-oriented devices, network devices, SCSI target and HBA devices, and USB devices for the Solaris Operating System (Solaris OS). This book discusses how to develop multithreaded reentrant device drivers for all architectures that conform to the Solaris OS DDI/DKI (Device Driver Interface, Driver-Kernel Interface). A common driver programming approach is described that enables drivers to be written without concern for platform-specific issues such as endianness and data ordering.Additional topics include hardening Solaris drivers; power management; driver autoconfiguration; programmed I/O; Direct Memory Access (DMA); device context management; compilation, installation, and testing drivers; debugging drivers; and porting Solaris drivers to a 64-bit environment.