NAME

esa − low-level module for Adaptec 7770 based SCSI controllers

AVAILABILITY

x86

DESCRIPTION

The esa module provides low-level interface routines between the common disk/tape I/O system and SCSI (Small Computer System Interface) controllers based on the Adaptec AIC-7770 SCSI chip.  These controllers include the Adaptec 2740 and 2840, as well as motherboards with an embedded AIC-7770 SCSI chip. 

The esa module can be configured for disk and streaming tape support for one or more host adapter boards, each of which must be the sole initiator on a SCSI bus.  Auto configuration code determines if the adapter is present at the configured address and what types of devices are attached to the adapter.  Each controller may support one or two SCSI busses, depending on the manufacturer’s implementation. 

FILES

/kernel/drv/esa.conf configuration file for the esa driver. There are no user-configurable options in this file. 

SunOS 5.5/x86  —  Last change: 29 Apr 1994