SCSI Device Driver SCSI SCSI device drivers The COHERENT SCSI series of device drivers lets you use SCSI-in- terface devices attached to host adapters from several vendors. All COHERENT SCSI device drivers use major number 13, thus allowing all SCSI devices to be accessed via standard device- naming conventions. Peripherals can be accessed as either block- or character-special devices. The minor number specifies the device and partition number for disk-type devices; this allows the use of up to eight SCSI identifiers (SCSI-ID's), with up to four logical unit numbers (LUNs) per SCSI-ID and up to four par- titions per LUN. Tape and other special devices decode the minor number to perform special operations such as ``rewind on close'' or ``no rewind on close''. The first open call on a SCSI disk device allocates memory for the partition table and reads it into memory. See the release notes for further information regarding supported host adapters and peripherals. ***** Files ***** /dev/sd* -- block-special devices /dev/rsd* -- character-special devices ***** See Also ***** aha154x, device drivers, drvld ***** Notes ***** The Mark Williams Company's bulletin board makes available load- able device drivers for various SCSI host adapters, as well as device driver updates. See the release notes for further infor- mation. COHERENT Lexicon Page 1