1.\" $NetBSD: fd.4,v 1.8 2002/01/15 01:59:42 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 sparc 39.Os 40.Sh NAME 41.Nm fd , 42.Nm fdc 43.Nd Sun SPARCstation i82072 or i82077 floppy disk controller driver 44.Sh SYNOPSIS 45.Cd "fdc0 at mainbus0" Pq sun4c 46.Cd "fdc0 at obio0" Pq sun4m 47.Cd "fd* at fdc0" 48.Sh DESCRIPTION 49This is the driver for the built-in floppy disk drive run by the 50.Tn Intel 51i82072 or i82077 controller chip found on the SPARCstation desktop 52systems, and other 53.Tn SPARC 54systems. 55.Pp 56Bits 57.Bq 0-3 58of the minor device number of the special files referring to this 59device encode the floppy density as follows: 60.Bl -tag -width indent -offset indent 61.It 0 623.5'' 1.44MB floppy diskettes. 63.It 1 643.5'' 720KB floppy diskettes. 65.It 2 663.5'' 360KB floppy diskettes. 67.It 3 683.5'' 1.2MB/NEC Japanese format floppy diskettes. 69.El 70.Sh FORMATTING 71The driver supports floppy disk formatting using the interfaces in 72.Pa Aq sys/fdio.h : 73.Pp 74.Bl -tag -width FDIOCFORMAT_TRACK -compact 75.It Dv FDIOCGETFORMAT Fa struct fdformat_parms 76Fetch current formatting parameters. 77This gets the default parameters 78for the open device if no parameters have been set during the session. 79.Pp 80.It Dv FDIOCSETFORMAT Fa struct fdformat_parms 81Set formatting parameters. 82The driver saves this state and it persists while the device is open. 83.Pp 84.It Dv FDIOCFORMAT_TRACK Fa struct fdformat_cmd 85Format a track on the medium. 86If this call returns 87.Er EINVAL , 88the track formatting parameters were out of range for the medium. 89If it returns 90.Er EIO , 91there was a medium error while formatting the track. 92.Pp 93.It Dv FDIOCSETOPTS Fa int 94Set driver options which persist until the device is closed. 95The 96options should be the logical OR of the desired values below: 97.Pp 98.Bl -tag -width FDOPT_NORETRY -compact 99.It Dv FDOPT_NORETRY 100Do not retry operations on failure 101.It Dv FDOPT_SILENT 102Do not print error messages to the console 103.El 104.Pp 105.It Dv FDIOCGETOPTS Fa int 106Fetch drive options. 107.El 108.Pp 109A typical use of the formatting facilities would be to open the device, 110call 111.Dv FDIOCGETFORMAT 112to fetch the current format parameters, perhaps 113change a parameter or two, display the formatting details to the user, 114and then call 115.Dv FDIOCSETFORMAT 116followed by a series of calls to 117.Dv FDIOCFORMAT_TRACK . 118.Sh SEE ALSO 119.Xr eject 1 , 120.Xr fdformat 1 121.Sh HISTORY 122The 123.Nm 124formatting support appeared in 125.Nx 1.3 . 126.Sh BUGS 127Formatting appears to not work reliably on all machines. 128