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 transfer:
       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 compatibles), 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 successors, or Midori-Denshi MDC-926R
             0x30000   bus-master transfer mode for an ELECOM bus-master 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:

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

Debian                                          November 18, 2003                                          CT(4)