trantor(7D)
NAME
trantor − low-level module for Trantor T348 Parallel SCSI host bus adapter
SYNOPSIS
trantor@ioaddr,0
AVAILABILITY
x86
DESCRIPTION
The trantor module provides low-level interface routines between the common disk/tape I/O subsystem and the Trantor T348 Mini-SCSI-Plus parallel host bus adapter. The Trantor T348 is a SCSI (Small Computer System Interface) host bus adapter that plugs into a parallel port (rather than a bus slot). It offers lower performance than other host bus adapters, but has the advantage of being compatible with notebook computers which do not accept a standard host bus adapter card.
CONFIGURATION
Auto configuration code determines whether the adapter is present at the configured address. Auto configuration code also determines what types of devices are attached to the adapter.
The trantor driver attempts to initialize itself in accordance with the information found in the configuration file, trantor.conf. The relevant user configurable items in this file are as follows:
reg reg consists of a 3-tuple of integers. The first integer is the bus I/O address of the parallel port the Trantor T348 is connected to. The second and third integer are usually 0. See sysbus(4) for more information.
ioaddr The bus I/O address of the parallel port the Trantor T348 is connected to.
intr The interrupt request (IRQ) level of the parallel port the Trantor T348 is connected to. See sysbus(4) for more information.
The standard configuration file contains entries for the three common parallel port configurations as follows:
name="trantor" class="sysbus" intr=3,5 reg=0x278,0,0 ioaddr=0x278
flow_control="dsngl" queue="qsort" disk="scdk" tape="sctp" ;
name="trantor" class="sysbus" intr=3,7 reg=0x378,0,0 ioaddr=0x378
flow_control="dsngl" queue="qsort" disk="scdk" tape="sctp" ;
name="trantor" class="sysbus" intr=3,7 reg=0x3bc,0,0 ioaddr=0x3bc
flow_control="dsngl" queue="qsort" disk="scdk" tape="sctp" ;
FILES
/kernel/drv/trantor.conf
trantor device driver configuration file
SEE ALSO
NOTES
The trantor driver can support only one T348 adapter per system.
The trantor driver does not support the T348 pass-through parallel port.
The trantor driver does not support concurrent use of SCSI devices and any other device (such as a printer) connected to the same parallel port. All SCSI devices must be closed before any other peripheral devices on the parallel port can be accessed.
SunOS 5.5.1 — Last change: 31 Aug 1994