1.\" $NetBSD: fd.4,v 1.8 2002/01/15 02:01:23 wiz Exp $ 2.\" 3.\" Copyright (c) 1996 The NetBSD Foundation, Inc. 4.\" All rights reserved. 5.\" 6.\" This code is derived from software contributed to The NetBSD Foundation 7.\" by Paul Kranenburg. 8.\" 9.\" Redistribution and use in source and binary forms, with or without 10.\" modification, are permitted provided that the following conditions 11.\" are met: 12.\" 1. Redistributions of source code must retain the above copyright 13.\" notice, this list of conditions and the following disclaimer. 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in the 16.\" documentation and/or other materials provided with the distribution. 17.\" 3. All advertising materials mentioning features or use of this software 18.\" must display the following acknowledgement: 19.\" This product includes software developed by the NetBSD 20.\" Foundation, Inc. and its contributors. 21.\" 4. Neither the name of The NetBSD Foundation nor the names of its 22.\" contributors may be used to endorse or promote products derived 23.\" from this software without specific prior written permission. 24.\" 25.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 26.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 29.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35.\" POSSIBILITY OF SUCH DAMAGE. 36.\" 37.Dd June 23, 1996 38.Dt FD 4 sun3 39.Os 40.Sh NAME 41.Nm fd 42.Nd Sun 3/80 i82027 floppy disk drive controller driver 43.Sh SYNOPSIS 44.Cd "fdc0 at obio0" Pq sun3x 45.Cd "fd* at fdc0" 46.Sh DESCRIPTION 47The 48.Nm 49driver is for the built-in floppy diskette drive run by the 50.Tn Intel 51i82027 controller found on the Sun 3/80. 52.Pp 53Bits 54.Bq 0-3 55of the minor device number of the special files referring to this 56device encode the floppy density as follows: 57.Bl -tag -width indent -offset indent 58.It 0 593.5'' 1.44MB floppy diskettes. 60.It 1 613.5'' 720KB floppy diskettes. 62.It 2 633.5'' 360KB floppy diskettes. 64.It 3 653.5'' 1.2MB/NEC Japanese format floppy diskettes. 66.El 67.Sh FORMATTING 68The driver supports floppy disk formatting using the interfaces in 69.Pa Aq sys/fdio.h : 70.Pp 71.Bl -tag -width FDIOCFORMAT_TRACK -compact 72.It Dv FDIOCGETFORMAT Fa struct fdformat_parms 73Fetch current formatting parameters. 74This gets the default parameters 75for the open device if no parameters have been set during the session. 76.Pp 77.It Dv FDIOCSETFORMAT Fa struct fdformat_parms 78Set formatting parameters. 79The driver saves this state and it persists while the device is open. 80.Pp 81.It Dv FDIOCFORMAT_TRACK Fa struct fdformat_cmd 82Format a track on the medium. 83If this call returns 84.Er EINVAL , 85the track formatting parameters were out of range for the medium. 86If it returns 87.Er EIO , 88there was a medium error while formatting the track. 89.Pp 90.It Dv FDIOCSETOPTS Fa int 91Set driver options which persist until the device is closed. 92The 93options should be the logical OR of the desired values below: 94.Pp 95.Bl -tag -width FDOPT_NORETRY -compact 96.It Dv FDOPT_NORETRY 97Do not retry operations on failure 98.It Dv FDOPT_SILENT 99Do not print error messages to the console 100.El 101.Pp 102.It Dv FDIOCGETOPTS Fa int 103Fetch drive options. 104.El 105.Pp 106A typical use of the formatting facilities would be to open the device, 107call 108.Dv FDIOCGETFORMAT 109to fetch the current format parameters, perhaps 110change a parameter or two, display the formatting details to the user, 111and then call 112.Dv FDIOCSETFORMAT 113followed by a series of calls to 114.Dv FDIOCFORMAT_TRACK . 115.Sh SEE ALSO 116.Xr eject 1 , 117.Xr fdformat 1 118.Sh HISTORY 119The 120.Nm 121formatting support appeared in 122.Nx 1.3 . 123.Sh BUGS 124Formatting appears to not work reliably on all machines. 125