.\" .\" Copyright (C) 1994 by Joerg Wunsch, Dresden .\" 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(S) ``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(S) 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: src/usr.sbin/fdcontrol/fdcontrol.8,v 1.9.2.4 2002/06/21 16:40:24 charnier Exp $ .\" .Dd June 21, 2018 .Dt FDCONTROL 8 .Os .Sh NAME .Nm fdcontrol .Nd modify floppy disk parameters .Sh SYNOPSIS .Nm .Ar device .Sh DESCRIPTION The .Nm utility allows the modification of the run-time behavior of the floppy disk device specified by .Ar device . .Ar Device should be a character device. It currently supports the specification of device parameters for the floppy disk drive. .Pp Since the implications of such actions are considered harmful, the underlying .Xr ioctl 2 command is restricted to the super-user. .Pp When requesting a new parameter specification, the command asks the user for each individual tunable parameter, defaulting to the currently used value. .Sh DIAGNOSTICS Error codes for the underlying .Xr ioctl 2 commands are printed by the .Xr warn 3 facility. .Sh SEE ALSO .Xr ioctl 2 , .Xr warn 3 , .Xr fdc 4 .Sh AUTHORS The program has been contributed by .An J\(:org Wunsch , Dresden.