freebsd-skq/share/man/man4/aha.4

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.\"
.\" Copyright (c) 1994 Wilko Bulte
.\" All rights reserved.
.\"
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.\" modification, are permitted provided that the following conditions
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.\" 1. Redistributions of source code must retain the above copyright
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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.\" $FreeBSD$
.\"
.Dd October 15, 1998
.Dt AHA 4
.Os
.Sh NAME
.Nm aha
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.Nd Adaptec SCSI host adapter driver
.Sh SYNOPSIS
.Cd device aha
.Cd device scbus
.Pp
In
.Pa /boot/device.hints :
.Cd hint.aha.0.at="isa"
.Sh DESCRIPTION
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This driver provides access to the
.Tn SCSI
bus connected to an Adaptec 154xA, 154xB, 154xC, 154xCF, or 154xCP
host adapter. Host adapters supporting a 154X compatible interface,
such as some Tekram controllers and the Adaptec 174x in 154x
emulation mode can, also be attached with this driver. For optimum
performance, Adaptec 174x controllers should be configured in
enhanced mode and attached via the
.Xr ahb 4
driver.
.Pp
One kernel config entry for every card to be attached by the system is
required. Specific values for the port address, irq, and drq may be
specified. If wildcard values are used, the driver will query the
device for its current settings and use those. If the port address
is a wildcard, the driver consults an internal table of possible port address
locations and attaches to the first unattached card it finds. The possible
port addresses for this card are 0x330, 0x334, 0x230, 0x234, 0x130, and
0x134.
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.Sh SEE ALSO
.Xr ahb 4 ,
.Xr ahc 4 ,
.Xr cd 4 ,
.Xr da 4 ,
.Xr sa 4 ,
.Xr scsi 4
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.\"
.\" .Sh DIAGNOSTICS
.\"
.Sh AUTHORS
.An -nosplit
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The
.Nm
driver was ported by
.An M. Warner Losh
from the
.Nm bt
driver written by
.An Justin T. Gibbs .