Chapter 15: SCSI Device Drivers

If your aim is to control a SCSI device from a user-level process, this chapter contains some useful background information to supplement Chapter 5, "User-Level Access to SCSI Devices." If you are designing a kernel-level SCSI driver, this chapter contains essential information on kernel support. The major topics in this chapter are as follows:

• "SCSI Support in Silicon Graphics Systems" gives an overview of the hardware and software support for SCSI.

• "Host Adapter Facilities" documents the use of the host adapter driver to access a SCSI device.

• "Designing a SCSI Driver" notes design differences from other driver types, and includes an example driver skeleton.

• "Example SCSI Device Driver" lists a skeleton driver to illustrate the use of the interface.

• "Designing a Host Adapter Driver" documents the facility for creating and installing customized host adapter drivers.

• "SCSI Reference Data" tabulates SCSI codes and messages for reference.

intro(7) reference page	Documents the naming conventions for disk and tape device special files.
dksc(7) reference page	Documents the Silicon Graphics disk volume partition layout and the ioctl support in the base-level SCSI drivers.
ANSI X3.131-1986 and X3T9.2/85-52 Rev 4B.	SCSI standards documents.
http://www.abekrd.co.uk/SCSI2/	Web page containing the complete SCSI-2 standard in HTML form.

SCSI Support in Silicon Graphics Systems

Host Adapter Facilities

Designing a SCSI Driver

Example SCSI Device Driver

Designing a Host Adapter Driver

SCSI Reference Data