floppy manpage; netbsd pr#2261; from andrew@wipux2.wifo.uni-mannheim.de

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+.\"    $NetBSD: fdc.4,v 1.6 1996/03/22 01:55:14 andrew Exp $
+.\"
+.\" Copyright (c) 1996 Andrew C. Wheadon
+.\" Copyright (c) 1983, 1991, 1993
+.\"    The Regents of the University of California.  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 acknowledgement:
+.\"    This product includes software developed by the University of
+.\"    California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
+.\"
+.\"     @(#)fdc.4      8.1 (Berkeley) 3/22/96
+.\"
+.Dd March 25, 1996
+.Dt FDC 4
+.Os NetBSD
+.Sh NAME
+.Nm fdc
+.Nd NEC765 compatible floppy disk driver
+.Sh SYNOPSIS
+.Cd "fdc0 at isa? port 0x3f0 irq 6 drq 2"
+.Cd "fd* at fdc? drive ?"
+.Sh DESCRIPTION
+The
+.Nm fdc
+driver supports the standard AT floppy 
+disk controllers. These include standard IDE, MFM, RLL,
+EIDE, ESDI and SCSI controllers with floppy attachment.
+.Pp
+When using the
+.Nm fdc
+driver with
+.Nm disklabel
+the last letter is used to indicate the floppy size:
+.Bl -tag -width indent
+.It a: default (probed) geometry of drive, max supported.
+.It b: 1.44MB
+.It c: 1.2MB
+.It d: 360KB/AT (360KB disk in a 1.2 MB drive)
+.It e: 360KB/PC (360KB drive)
+.It f: 720KB
+.It g: 720KB/x (720KB in a 1.2 MB drive)
+.It h: 360KB/x (360KB in a 720KB drive)
+.Sh BUGS
+The
+.Nm fdc 
+driver can interfere with other controllers namely some WD/SMC
+network controllers fail to work when the probing mechanism
+in the 
+.Nm fdc 
+driver probes for a missing second floppy drive.
+In this case you should try recompiling the kernel with
+the replacing the relevant line with
+.Cd "fd0 at fdc? drive ?".
+.Sh SEE ALSO
+.Xr intro 4 ,
+.Xr dmesg 8 .