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+.\"	$OpenBSD: eisa.4,v 1.1 2002/01/24 23:00:05 mickey Exp $
+.\"	$NetBSD: eisa.4,v 1.10 2001/09/11 22:52:52 wiz Exp $
+.\"
+.\" Copyright (c) 1997 Jonathan Stone
+.\" 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. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgements:
+.\"      This product includes software developed by Jonathan Stone
+.\" 4. The name of the author may not be used to endorse or promote products
+.\"    derived from this software without 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 February 17, 1997
+.Dt EISA 4
+.Os
+.Sh NAME
+.Nm eisa
+.Nd Introduction to EISA bus machine-independent drivers and support
+.Sh SYNOPSIS
+Machine-dependent; depends on the bus topology and
+.Tn EISA
+bus interface of your system.  Typical
+.Tn EISA
+buses are either connected directly
+to the main system bus, or via an
+.Tn PCI
+to
+.Tn EISA
+bridge.  See the
+.Xr intro 4
+documentation for your system for details.
+.Sh INTRODUCTION
+.Nx
+includes a machine-independent
+.Tn EISA
+bus subsystem and several machine-independent
+.Tn EISA
+device drivers.
+.Pp
+Your system may support additional
+.Tn EISA
+devices.
+Drivers for
+.Tn EISA
+devices not listed here are machine-dependent.
+Consult your system's
+.Xr intro 4
+for additional information.
+.Sh SUPPORTED DEVICES
+.Nx
+includes machine-independent
+.Tn EISA
+drivers, sorted by device type
+and driver name:
+.Ss Disk and tape controllers
+.Bl -tag -width pcdisplay -offset indent
+.It cac
+Compaq array controllers.
+.It dpt
+DPT SmartCache/SmartRAID controllers.
+.El
+.Ss SCSI interfaces
+.Bl -tag -width pcdisplay -offset indent
+.It ahb
+Adaptec 174x
+.Tn SCSI
+interfaces.
+.It ahc
+Adaptec AIC 7770, 274x, and 284x
+.Tn SCSI
+interfaces.
+.It bha
+BusLogic BT-74x
+.Tn SCSI
+interfaces.
+.It uha
+Ulrastor 24f
+.Tn SCSI
+interfaces.
+.El
+.Ss Network interfaces
+.Bl -tag -width pcdisplay -offset indent
+.It ep
+3Com 3c579 and 3c592 10Mbit
+.Tn Ethernet ,
+and 3c597 10/100Mbit
+.Tn Ethernet
+interfaces.
+.It fea
+Digital DEFEA FDDI interfaces.
+.\" .It le
+.\" Digital DE422
+.\" .Tn Ethernet
+.\" interfaces.
+.\" .It tlp
+.\" Digital DE425
+.\" .Tn Ethernet
+.\" interfaces.
+.El
+.Pp
+Note that most or all
+.Tn EISA
+devices also have
+.Tn PCI
+or
+.Tn ISA
+equivalents.
+These are listed in
+.Xr pci 4 ,
+.Xr isa 4 ,
+or
+.Xr isapnp 4 ,
+respectively.  The manual pages for each individual driver also lists the
+supported bus variants.
+.Sh SEE ALSO
+.Xr ahb 4 ,
+.Xr ahc 4 ,
+.Xr bha 4 ,
+.Xr cac 4 ,
+.Xr dpt 4 ,
+.Xr ep 4 ,
+.Xr fea 4 ,
+.Xr intro 4 ,
+.\" .Xr le 4 ,
+.\" .Xr mlx 4 ,
+.\" .Xr tlp 4 ,
+.Xr uha 4
+.Sh HISTORY
+The machine-independent
+.Tn EISA
+subsystem appeared in
+.Ox 1.2 .