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					CT (4)                                  BSD/i386 Kernel Interfaces Manual                               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 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




BSD                                             November 18, 2003                                            1
CT (4)                               BSD/i386 Kernel Interfaces Manual                                CT (4)



         •   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〉.




BSD                                          November 18, 2003                                             2

				
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