Notes about drivers for disk devices

Peripheral drivers for SCSI disk devices must support the standard kernel interfaces for disk devices in addition to the SCSI-specific interfaces discussed in this chapter. These include support for the following structures:

• buf as defined in the <sys/buf.h> header file

• diskinfo as defined in the <sys/disk.h> header file

• iobuf xxtab as defined in the <sys/iobuf.h> header file

For more information about the standard disk driver interface, see Peter Kettle and Steve Statler, Writing Device Drivers for SCO UNIX.