Computer Science
KBDRATE(8) Linux Programmer's Manual KBDRATE(8)
NAME
kbdrate - reset the keyboard repeat rate and delay time
SYNOPSIS
kbdrate [ -s ] [ -r rate ] [ -d delay ]
DESCRIPTION
kbdrate is used to change the keyboard repeat rate and
delay time. The delay is the amount of time that a key
must be depressed before it will start to repeat.
Using kbdrate without any options will reset the rate to
10.9 characters per second (cps) and the delay to 250 mil-
liseconds (ms) for Intel- and M68K-based systems (the IBM
defaults), or on SPARC-based systems, the rate to 5 cps
and the delay to 200 ms.
OPTIONS
-s Silent. No messages are printed.
-r rate
Change the keyboard repeat rate to rate cps. For
Intel-based systems, the allowable range is from
2.0 to 30.0 cps. Only certain specific values are
possible, and the program will select the nearest
possible value to the one specified. The possible
values are given, in characters per second, as fol-
lows: 0.0 (no repeat), 2.0, 2.1, 2.3, 2.5, 2.7,
3.0, 3.3, 3.7, 4.0, 4.3, 4.6, 5.0, 5.5, 6.0, 6.7,
7.5, 8.0, 8.6, 9.2, 10.0, 10.9, 12.0, 13.3, 15.0,
16.0, 17.1, 18.5, 20.0, 21.8, 24.0, 26.7, 30.0.
For SPARC-based systems, the allowable range is
from 0 (no repeat) to 50 cps.
-d delay
Change the delay to delay milliseconds. For Intel-
based systems, the allowable range is from 250 to
1000 ms, in 250 ms steps.
For SPARC systems, possible values are between 10
ms and 1440 ms, in 10 ms steps.
BUGS
Not all keyboards support all rates.
Not all keyboards have the rates mapped in the same way.
Setting the repeat rate on the Gateway AnyKey keyboard
does not work. If someone with a Gateway figures out how
to program the keyboard, please send mail to util-
linux@math.uio.no.
This has been tested on Intel-, SPARC-, and M68K-based
machines. It may not work on other architectures.
FILES
/etc/rc.local
/dev/port (Intel)
/dev/kbd (SPARC)
CREDITS
Rik Faith <faith@cs.unc.edu> wrote the original kbdrate.
Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de> added
support for Linux/68k. Jeffrey Connell
<ankh@canuck.gen.nz> added support for Linux/SPARC.
Linux 2.2 17 March 1999 1
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