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diff --git a/man4/fd.4 b/man4/fd.4 deleted file mode 100644 index e1aaacb..0000000 --- a/man4/fd.4 +++ /dev/null @@ -1,232 +0,0 @@ -'\" t -.\" Copyright (c) 1993 Michael Haardt (michael@cantor.informatik.rwth-aachen.de) -.\" and 1994,1995 Alain Knaff (Alain.Knaff@imag.fr) -.\" -.\" SPDX-License-Identifier: GPL-2.0-or-later -.\" -.\" Modified, Sun Feb 26 15:00:02 1995, faith@cs.unc.edu -.\" -.TH fd 4 2023-10-31 "Linux man-pages 6.7" -.SH NAME -fd \- floppy disk device -.SH CONFIGURATION -Floppy drives are block devices with major number 2. -Typically they -are owned by -root:floppy -(i.e., user root, group floppy) and have -either mode 0660 (access checking via group membership) or mode 0666 -(everybody has access). -The minor -numbers encode the device type, drive number, and controller number. -For each device type (that is, combination of density and track count) -there is a base minor number. -To this base number, add the drive's -number on its controller and 128 if the drive is on the secondary -controller. -In the following device tables, \fIn\fP represents the -drive number. -.P -\fBWarning: if you use formats with more tracks -than supported by your drive, you may cause it mechanical damage.\fP -Trying once if more tracks than the usual 40/80 are supported should not -damage it, but no warranty is given for that. -If you are not sure, don't create device -entries for those formats, so as to prevent their usage. -.P -Drive-independent device files which automatically detect the media -format and capacity: -.TS -l c -l c. -Name Base - minor # -_ -\fBfd\fP\fIn\fP 0 -.TE -.P -5.25 inch double-density device files: -.TS -lw(1i) l l l l c -lw(1i) c c c c c. -Name Capacity Cyl. Sect. Heads Base - KiB minor # -_ -\fBfd\fP\fIn\fP\fBd360\fP 360 40 9 2 4 -.TE -.P -5.25 inch high-density device files: -.TS -lw(1i) l l l l c -lw(1i) c c c c c. -Name Capacity Cyl. Sect. Heads Base - KiB minor # -_ -\fBfd\fP\fIn\fP\fBh360\fP 360 40 9 2 20 -\fBfd\fP\fIn\fP\fBh410\fP 410 41 10 2 48 -\fBfd\fP\fIn\fP\fBh420\fP 420 42 10 2 64 -\fBfd\fP\fIn\fP\fBh720\fP 720 80 9 2 24 -\fBfd\fP\fIn\fP\fBh880\fP 880 80 11 2 80 -\fBfd\fP\fIn\fP\fBh1200\fP 1200 80 15 2 8 -\fBfd\fP\fIn\fP\fBh1440\fP 1440 80 18 2 40 -\fBfd\fP\fIn\fP\fBh1476\fP 1476 82 18 2 56 -\fBfd\fP\fIn\fP\fBh1494\fP 1494 83 18 2 72 -\fBfd\fP\fIn\fP\fBh1600\fP 1600 80 20 2 92 -.TE -.P -3.5 inch double-density device files: -.TS -lw(1i) l l l l c -lw(1i) c c c c c. -Name Capacity Cyl. Sect. Heads Base - KiB minor # -_ -\fBfd\fP\fIn\fP\fBu360\fP 360 80 9 1 12 -\fBfd\fP\fIn\fP\fBu720\fP 720 80 9 2 16 -\fBfd\fP\fIn\fP\fBu800\fP 800 80 10 2 120 -\fBfd\fP\fIn\fP\fBu1040\fP 1040 80 13 2 84 -\fBfd\fP\fIn\fP\fBu1120\fP 1120 80 14 2 88 -.TE -.P -3.5 inch high-density device files: -.TS -lw(1i) l l l l c -lw(1i) c c c c c. -Name Capacity Cyl. Sect. Heads Base - KiB minor # -_ -\fBfd\fP\fIn\fP\fBu360\fP 360 40 9 2 12 -\fBfd\fP\fIn\fP\fBu720\fP 720 80 9 2 16 -\fBfd\fP\fIn\fP\fBu820\fP 820 82 10 2 52 -\fBfd\fP\fIn\fP\fBu830\fP 830 83 10 2 68 -\fBfd\fP\fIn\fP\fBu1440\fP 1440 80 18 2 28 -\fBfd\fP\fIn\fP\fBu1600\fP 1600 80 20 2 124 -\fBfd\fP\fIn\fP\fBu1680\fP 1680 80 21 2 44 -\fBfd\fP\fIn\fP\fBu1722\fP 1722 82 21 2 60 -\fBfd\fP\fIn\fP\fBu1743\fP 1743 83 21 2 76 -\fBfd\fP\fIn\fP\fBu1760\fP 1760 80 22 2 96 -\fBfd\fP\fIn\fP\fBu1840\fP 1840 80 23 2 116 -\fBfd\fP\fIn\fP\fBu1920\fP 1920 80 24 2 100 -.TE -.P -3.5 inch extra-density device files: -.TS -lw(1i) l l l l c -lw(1i) c c c c c. -Name Capacity Cyl. Sect. Heads Base - KiB minor # -_ -\fBfd\fP\fIn\fP\fBu2880\fP 2880 80 36 2 32 -\fBfd\fP\fIn\fP\fBCompaQ\fP 2880 80 36 2 36 -\fBfd\fP\fIn\fP\fBu3200\fP 3200 80 40 2 104 -\fBfd\fP\fIn\fP\fBu3520\fP 3520 80 44 2 108 -\fBfd\fP\fIn\fP\fBu3840\fP 3840 80 48 2 112 -.TE -.SH DESCRIPTION -\fBfd\fP special files access the floppy disk drives in raw mode. -The following -.BR ioctl (2) -calls are supported by \fBfd\fP devices: -.TP -.B FDCLRPRM -clears the media information of a drive (geometry of disk in drive). -.TP -.B FDSETPRM -sets the media information of a drive. -The media information will be -lost when the media is changed. -.TP -.B FDDEFPRM -sets the media information of a drive (geometry of disk in drive). -The media information will not be lost when the media is changed. -This will disable autodetection. -In order to reenable autodetection, you -have to issue an \fBFDCLRPRM\fP. -.TP -.B FDGETDRVTYP -returns the type of a drive (name parameter). -For formats which work -in several drive types, \fBFDGETDRVTYP\fP returns a name which is -appropriate for the oldest drive type which supports this format. -.TP -.B FDFLUSH -invalidates the buffer cache for the given drive. -.TP -.B FDSETMAXERRS -sets the error thresholds for reporting errors, aborting the operation, -recalibrating, resetting, and reading sector by sector. -.TP -.B FDSETMAXERRS -gets the current error thresholds. -.TP -.B FDGETDRVTYP -gets the internal name of the drive. -.TP -.B FDWERRORCLR -clears the write error statistics. -.TP -.B FDWERRORGET -reads the write error statistics. -These include the total number of -write errors, the location and disk of the first write error, and the -location and disk of the last write error. -Disks are identified by a -generation number which is incremented at (almost) each disk change. -.TP -.B FDTWADDLE -Switch the drive motor off for a few microseconds. -This might be -needed in order to access a disk whose sectors are too close together. -.TP -.B FDSETDRVPRM -sets various drive parameters. -.TP -.B FDGETDRVPRM -reads these parameters back. -.TP -.B FDGETDRVSTAT -gets the cached drive state (disk changed, write protected et al.) -.TP -.B FDPOLLDRVSTAT -polls the drive and return its state. -.TP -.B FDGETFDCSTAT -gets the floppy controller state. -.TP -.B FDRESET -resets the floppy controller under certain conditions. -.TP -.B FDRAWCMD -sends a raw command to the floppy controller. -.P -For more precise information, consult also the \fI<linux/fd.h>\fP and -\fI<linux/fdreg.h>\fP include files, as well as the -.BR floppycontrol (1) -manual page. -.SH FILES -.I /dev/fd* -.SH NOTES -The various formats permit reading and writing many types of disks. -However, if a floppy is formatted with an inter-sector gap that is too small, -performance may drop, -to the point of needing a few seconds to access an entire track. -To prevent this, use interleaved formats. -.P -It is not possible to -read floppies which are formatted using GCR (group code recording), -which is used by Apple II and Macintosh computers (800k disks). -.P -Reading floppies which are hard sectored (one hole per sector, with -the index hole being a little skewed) is not supported. -This used to be common with older 8-inch floppies. -.\" .SH AUTHORS -.\" Alain Knaff (Alain.Knaff@imag.fr), David Niemi -.\" (niemidc@clark.net), Bill Broadhurst (bbroad@netcom.com). -.SH SEE ALSO -.BR chown (1), -.BR floppycontrol (1), -.BR getfdprm (1), -.BR mknod (1), -.BR superformat (1), -.BR mount (8), -.BR setfdprm (8) |