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Linux 2.6 - man page for kbdrate (linux section 8)

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 repeat rate to 10.9 characters per second
       (cps) and the delay to 250 milliseconds (ms) for Intel- and M68K-based systems.	These are
       the IBM defaults. On SPARC-based systems it will reset the repeat 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 allow-
	      able 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  follows:  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.

       -V     Display a version number and exit.

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.

       All  this  is  very architecture dependent.  Nowadays kbdrate first tries the KDKBDREP and
       KIOCSRATE ioctls.  (The former usually works on an m68k machine, the  latter  for  SPARC.)
       When these ioctls fail an ioport interface as on i386 is assumed.

FILES
       /etc/rc.local
       /dev/port

Linux 1.1.19				   22 June 1994 			       KBDRATE(8)


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