95 lines
2.7 KiB
Groff
95 lines
2.7 KiB
Groff
.\"
|
|
.\" Copyright (c) 1994 Wilko Bulte
|
|
.\" All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\" 3. The name of the author may not be used to endorse or promote products
|
|
.\" derived from this software withough specific prior written permission
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
.\"
|
|
.\"
|
|
.Dd January 19, 1996
|
|
.Dt AHB 4 i386
|
|
.Os FreeBSD
|
|
.Sh NAME
|
|
.Nm ahb
|
|
.Nd Adaptec EISA SCSI host adapter driver
|
|
.Sh SYNOPSIS
|
|
.Cd controller ahb0
|
|
.Cd controller scbus0 at ahb0
|
|
.Sh DESCRIPTION
|
|
This driver provides access to the
|
|
.Tn SCSI
|
|
bus connected to an Adaptec
|
|
174x hostadapter in either
|
|
.Dq Em standard
|
|
or
|
|
.Dq Em enhanced
|
|
mode. If the controller
|
|
is set to standard mode (using the
|
|
.Tn EISA
|
|
configuration utility),
|
|
the driver will automatically
|
|
switch the card to enhanced mode during the device probe.
|
|
.Pp
|
|
.Sy N.B. :
|
|
When configuring a system
|
|
with both
|
|
.Xr aha 4
|
|
and
|
|
.Nm
|
|
drivers, the
|
|
.Nm
|
|
driver should be listed first in the kernel configuration file. This
|
|
ensures that the
|
|
.Nm
|
|
driver will find the Adaptec 174x boards before the
|
|
.Xr aha 4
|
|
driver probes for Adaptec 154x boards.
|
|
.Pp
|
|
Note that no I/O addresses are configured in the kernel config file. The
|
|
174x uses
|
|
.Tn EISA
|
|
slot-specific I/O which is configured automatically.
|
|
.\"
|
|
.\" .Sh DIAGNOSTICS
|
|
.\"
|
|
.Sh SEE ALSO
|
|
.Xr aha 4 ,
|
|
.Xr ahc 4 ,
|
|
.Xr cd 4 ,
|
|
.Xr scsi 4 ,
|
|
.Xr sd 4 ,
|
|
.Xr st 4
|
|
.Sh AUTHOR
|
|
The
|
|
.Nm
|
|
driver was written by Julian Elischer for
|
|
.Tn Mach
|
|
2.5. It was converted to automatic
|
|
.Tn EISA
|
|
configuration by Justin Gibbs.
|
|
.Sh HISTORY
|
|
The
|
|
.Nm
|
|
driver first appeared in the
|
|
.Tn 386BSD
|
|
patchkit.
|