1KBDRATE(8) Linux Programmer's Manual KBDRATE(8)
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6 kbdrate - reset the keyboard repeat rate and delay time
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9 kbdrate [ -s ] [ -r rate ] [ -d delay ]
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12 kbdrate is used to change the keyboard repeat rate and delay time. The
13 delay is the amount of time that a key must be depressed before it will
14 start to repeat.
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16 Using kbdrate without any options will reset the repeat rate to 10.9
17 characters per second (cps) and the delay to 250 milliseconds (ms) for
18 Intel- and M68K-based systems. These are the IBM defaults. On SPARC-
19 based systems it will reset the repeat rate to 20 cps and the delay to
20 200 ms.
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24 -s Silent. No messages are printed.
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26 -r rate
27 Change the keyboard repeat rate to rate cps. For Intel-based
28 systems, the allowable range is from 2.0 to 30.0 cps. Only cer‐
29 tain, specific values are possible, and the program will select
30 the nearest possible value to the one specified. The possible
31 values are given, in characters per second, as follows: 2.0,
32 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,
33 6.7, 7.5, 8.0, 8.6, 9.2, 10.0, 10.9, 12.0, 13.3, 15.0, 16.0,
34 17.1, 18.5, 20.0, 21.8, 24.0, 26.7, 30.0. For SPARC-based sys‐
35 tems, the allowable range is from 0 (no repeat) to 50 cps.
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37 -d delay
38 Change the delay to delay milliseconds. For Intel-based sys‐
39 tems, the allowable range is from 250 to 1000 ms, in 250 ms
40 steps. For SPARC systems, possible values are between 10 ms and
41 1440 ms, in 10 ms steps.
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43 -V --version
44 Display a version number and exit.
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47 Not all keyboards support all rates.
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49 Not all keyboards have the rates mapped in the same way.
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51 Setting the repeat rate on the Gateway AnyKey keyboard does not work.
52 If someone with a Gateway figures out how to program the keyboard,
53 please send mail to util-linux@math.uio.no.
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55 All this is very architecture dependent. Nowadays kbdrate first tries
56 the KDKBDREP and KIOCSRATE ioctls. (The former usually works on an
57 m68k machine, the latter for SPARC.) When these ioctls fail an ioport
58 interface as on i386 is assumed.
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61 /etc/rc.local
62 /dev/port
63 /dev/kbd
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67Linux 1.1.19 22 June 1994 KBDRATE(8)