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+.\"
+.\" Copyright (c) 1998
+.\" 	Justin T. Gibbs.  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. 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.
+.\"
+.\"	$Id$
+.\"
+.Dd October 16, 1998
+.Dt ADW 4 i386
+.Os FreeBSD
+.Sh NAME
+.Nm adw
+.Nd Advansys PCI 16bit SCSI Host adapter driver
+.Sh SYNOPSIS
+.Cd controller pci0
+.Cd controller adw0
+.Pp
+For one or more SCSI busses:
+.Cd controller scbus0 at adw0
+.Sh DESCRIPTION
+This driver provides access to the 16bit
+.Tn SCSI
+bus connected to the Advanced Systems Products, Inc.
+.Tn ASC3550 
+as found on the ABP940UW SCSI Host Adapter board.  This chip
+supports, Ultra SCSI (20MHz), 16bit transfers, tagged queueing,
+and up to 253 concurrent SCSI transactions.
+.Pp
+Per target configuration performed in the 
+.Tn AdvanceWare
+menu, which is accessible at boot,
+is honored by this driver.
+This includes synchronous/asynchronous transfers,
+maximum synchronous negotiation rate, wide transfers, disconnection,
+tagged queueing, and the host adapter's SCSI ID.
+The global setting for the maximum number of tagged transactions allowed
+per target is not honored as the CAM SCSI system will automatically determine
+the maximum number of tags a device can receive as well as guarantee fair
+resource allocation among devices.
+.Sh SEE ALSO
+.Xr adv 4 ,
+.Xr cd 4 ,
+.Xr scsi 4 ,
+.Xr da 4 ,
+.Xr sa 4
+.Sh AUTHORS
+The
+.Nm
+driver was ported by
+.An Justin T. Gibbs
+from the Linux driver written by
+.An Bob Frey
+of Advanced System Products, Inc. Many thanks to AdvanSys for providing
+the original driver under a suitable license for use in FreeBSD.
+.Sh HISTORY
+The
+.Nm
+driver appeared in
+.Fx 3.0 .
+
+