FreeBSD 4.0 manual page repository

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ahb - Adaptec EISA SCSI host adapter driver

 

NAME

      ahb - Adaptec EISA SCSI host adapter driver
 

SYNOPSIS

      device ahb
      device scbus0 at ahb0
 

DESCRIPTION

      This driver provides access to the SCSI bus connected to an Adaptec 174x
      hostadapter in “enhanced” mode.  Tagged queueing and synchronous SCSI
      transfers are supported.
 

CAVEATS

      The Adaptec 174X is very sensitive to SCSI bus termination and cable
      length.  It may also have difficulties operating with some modern devices
      that, due to their speed, expose timing problems in the controller.
      There are no known mechanisms for working around device incompatibilities
      of this nature.
      aha(4), ahc(4), cd(4), da(4), sa(4), scsi(4)
 

AUTHORS

      The ahb driver was written by Justin T. Gibbs.
 

Sections

Based on BSD UNIX
FreeBSD is an advanced operating system for x86 compatible (including Pentium and Athlon), amd64 compatible (including Opteron, Athlon64, and EM64T), UltraSPARC, IA-64, PC-98 and ARM architectures. It is derived from BSD, the version of UNIX developed at the University of California, Berkeley. It is developed and maintained by a large team of individuals. Additional platforms are in various stages of development.
 

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