FDCONTROL(8) BSD System Manager's Manual FDCONTROL(8)NAMEfdcontrol — modify floppy disk parameters
SYNOPSISfdcontrol [-d 0|1] device
fdcontrol [-s] device
DESCRIPTION
The fdcontrol utility allows the modification of the run-time behavior of
the floppy disk device specified by device. Device should be a character
device.
The fdcontrol utility currently supports the specification of device
parameters for the floppy disk drive (-s, also default mode), or it
allows the modification of the driver debug level, in case the floppy
driver has been compiled into the kernel with the DEBUG option set (-d).
Since the implications of such actions are considered harmful, the under‐
lying ioctl(2) command is restricted to the super-user.
When requesting a new parameter specification, the command asks the user
for each individual tunable parameter, defaulting to the currently used
value.
DIAGNOSTICS
Error codes for the underlying ioctl(2) commands are printed by the
warn(3) facility.
SEE ALSOioctl(2), warn(3), fdc(4)HISTORY
The fdcontrol utility is currently under development. It's user inter‐
face and overall functionality are subjects to future improvements and
changes.
AUTHORS
The program has been contributed by Jörg Wunsch, Dresden.
BUGS
The fdcontrol utility is currently under development. It's user inter‐
face is rather silly and likely to change in future, options should be
provided to allow anything being modified from the command line.
The driver does actually support only two debug levels (0 and 1), where
debug level 1 will generate huge amounts of output. It is likely to
overflow the syslog if not used with extreme care.
BSD May 22, 1994 BSD
