ct(4)

NAME

ct - WD33C93[ABC] based CBUS SCSI host adapter driver

SYNOPSIS

device ct
device scbus
In /boot/device.hints:
For most PC-9801-55, -92 and compatibles:
hint.ct.0.at="isa"
For ELECOM bus-master SCSI adapters:
hint.ct.0.at="isa"
hint.ct.0.flags="0x30000"
For I-O DATA SC98 adapters:
hint.ct.0.at="isa"
hint.ct.0.flags="0x10000"
For LOGITEC adapters:
hint.ct.0.at="isa"
hint.ct.0.flags="0x50000"
For TEXA adapters:
hint.ct.0.at="isa"
hint.ct.0.flags="0x20000"
For adapters with SMIT transfer mode to enable  SMIT   trans
fer:
hint.ct.0.at="isa"
hint.ct.0.flags="0x40000"
hint.ct.0.maddr="0xdc000"
Flags meaning:
      0x00000   DMA transfer mode for an NEC PC-9801-55, -92
(or compati                bles), ICM IF-2660, Midori-Denshi MDC-554NA,
or Logitec
                LHA-N151
      0x10000   DMA transfer mode for an I-O DATA SC-98II
      0x20000     bus-master   transfer   mode  for  a  TEXA
HA-55BS2, its succes                sors, or Midori-Denshi MDC-926R
      0x30000   bus-master transfer mode for an ELECOM  busmaster SCSI
                adapter
      0x40000    SMIT  transfer mode (for supported adapters
only)
      0x50000    bus-master  transfer  mode  for  a  Logitec
LHA-20x series,
                ICM IF-2766, IF-2766ET, IF-2767 or IF-2769

DESCRIPTION

The ct driver provides access to the SCSI bus connected to a

WD33C93[ABC]
based host adapter.

HARDWARE

The ct driver supports the following adapters:

+o ELECOM bus-master SCSI adapters
+o I-O DATA SC-98II
+o ICM IF-2660, IF-2766, IF-2766ET, IF-2767 and IF-2769
+o Logitec LHA-N151 and LHA-20x series
+o Midori-Denshi MDC-554NA and MDC-926R
+o NEC PC-9801-55, 92 and compatibles
+o SMIT transfer type SCSI host adapters
+o TEXA HA-55BS2 and its later models

SEE ALSO

cd(4), ch(4), ctau(4), da(4), intro(4), sa(4), scsi(4)

NOTES

Historically, the driver for the Cronyx Tau WAN adapters was

``ct''.
This device name was changed to ``ctau'' to avoid conflicts

with this
pc98 ct driver. The network device name for ctau(4) is

``ct''. Please
see ctau(4) for the details for that device.

HISTORY

The ct device driver has been developed for NetBSD/pc98 and

ported for
FreeBSD. It first appeared in FreeBSD 4.4.

AUTHORS

The ct driver was written by Naofumi HONDA.

This manual page was written by Noriaki MITSUNAGA

<non@FreeBSD.org> and
Hideyuki KURASHINA <rushani@FreeBSD.org>.

BSD November 18, 2003

BSD