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+.\"
+.\" Copyright (c) 2011 Marius Strobl <marius@FreeBSD.org>
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd November 1, 2011
+.Dt ESP 4
+.Os
+.Sh NAME
+.Nm esp
+.Nd Emulex ESP, NCR 53C9x and QLogic FAS families based SCSI controllers
+.Sh SYNOPSIS
+To compile this driver into the kernel, place the following lines in your
+kernel configuration file:
+.Bd -ragged -offset indent
+.Cd "device scbus"
+.Cd "device esp"
+.Ed
+.Pp
+Alternatively, to load the driver as a module at boot time, place the
+following line in
+.Xr loader.conf 5 :
+.Bd -literal -offset indent
+if_esp_load="YES"
+.Ed
+.Sh DESCRIPTION
+The
+.Nm
+driver provides support for the
+.Tn AMD
+Am53C974, the
+.Tn Emulex
+ESP100, ESP100A, ESP200 and ESP406, the
+.Tn NCR
+53C90, 53C94 and 53C96 as well as the
+.Tn QLogic
+FAS100A, FAS216, FAS366 and FAS408
+.Tn SCSI
+controller chips found in a wide variety of systems and peripheral boards.
+.Sh HARDWARE
+Controllers supported by the
+.Nm
+driver include:
+.Pp
+.Bl -bullet -compact
+.It
+MELCO IFC-DP (PC-98)
+.It
+Sun ESP family
+.It
+Sun FAS family
+.It
+Tekram DC390
+.It
+Tekram DC390T
+.El
+.Sh SEE ALSO
+.Xr cd 4 ,
+.Xr ch 4 ,
+.Xr da 4 ,
+.Xr intro 4 ,
+.Xr pci 4 ,
+.Xr sa 4 ,
+.Xr sbus 4 ,
+.Xr scsi 4 ,
+.Xr camcontrol 8
+.Sh HISTORY
+The
+.Nm
+driver first appeared in
+.Nx 1.3 .
+The first
+.Fx
+version to include it was
+.Fx 5.3 .
+.Sh AUTHORS
+.An -nosplit
+The
+.Nm
+driver was ported to
+.Fx
+by
+.An Scott Long
+.Aq scottl@FreeBSD.org
+and later on considerably improved by
+.An Marius Strobl
+.Aq marius@FreeBSD.org .
+.Sh BUGS
+The
+.Nm
+driver should read the EEPROM settings of
+.Tn Tekram
+controllers.