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+.\"
+.\" Copyright (c) 1994 James A. Jegers
+.\" 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 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 November 29, 1994
+.Dt WD 4 alpha
+.Os
+.Sh NAME
+.Nm wd
+.Nd WD100x compatible hard disk driver
+.Sh SYNOPSIS
+.Cd "wdc0 at isa? port 0x1f0 irq 14"
+.Cd "wdc0 at isa? port 0x170 irq 15"
+.Cd "wd* at wdc? drive ?"
+.Sh DESCRIPTION
+The
+.Nm wd
+driver supports hard disk controllers which emulate the Western
+Digital WD100x. This includes standard MFM, RLL, ESDI and IDE
+controllers. Most PCI bus alpha machines have a WD100x compatible
+controller builtin on the motherboard.
+.Pp
+Support for extended EIDE controllers is
+.Ud .
+.Sh SEE ALSO
+.Xr intro 4 ,
+.Xr acd 4