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NAME | SYNOPSIS | DESCRIPTION | THEORY | 2.6 KERNELS | OPTIONS | BUGS | SEE ALSO | COLOPHON |
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SETKEYCODES(8) Keyboard Support SETKEYCODES(8)
setkeycodes - load kernel scancode-to-keycode mapping table entries
setkeycodes scancode keycode ...
The setkeycodes command reads its arguments two at a time, each pair
of arguments consisting of a scancode (given in hexadecimal) and a
keycode (given in decimal). For each such pair, it tells the kernel
keyboard driver to map the specified scancode to the specified
keycode.
This command is useful only for people with slightly unusual
keyboards, that have a few keys which produce scancodes that the
kernel does not recognize.
The usual PC keyboard produces a series of scancodes for each key
press and key release. (Scancodes are shown by showkey -s, see
showkey(1).) The kernel parses this stream of scancodes, and
converts it to a stream of keycodes (key press/release events).
(Keycodes are shown by showkey.) Apart from a few scancodes with
special meaning, and apart from the sequence produced by the Pause
key, and apart from shiftstate related scancodes, and apart from the
key up/down bit, the stream of scancodes consists of unescaped
scancodes xx (7 bits) and escaped scancodes e0 xx (8+7 bits). To
these scancodes or scancode pairs, a corresponding keycode can be
assigned (in the range 1-127). For example, if you have a Macro key
that produces e0 6f according to showkey(1), the command
setkeycodes e06f 112
will assign the keycode 112 to it, and then loadkeys(1) can be used
to define the function of this key.
Some older kernels might hardwire a low scancode range to the
equivalent keycodes; setkeycodes will fail when you try to remap
these.
In 2.6 kernels key codes lie in the range 1-255, instead of 1-127.
(It might be best to confine oneself to the range 1-239.)
In 2.6 kernels raw mode, or scancode mode, is not very raw at all.
The code returned by showkey -s will change after use of setkeycodes.
A kernel bug. See also showkey(1).
None.
The keycodes of X have nothing to do with those of Linux. Unusual
keys can be made visible under Linux, but not under X.
dumpkeys (1), loadkeys (1), showkey (1), getkeycodes (8)
This page is part of the kbd (Linux keyboard tools) project.
Information about the project can be found at
⟨http://www.kbd-project.org/⟩. If you have a bug report for this man‐
ual page, send it to kbd@lists.altlinux.org. This page was obtained
from the project's upstream Git repository
⟨git://git.kernel.org/pub/scm/linux/kernel/git/legion/kbd.git⟩ on
2018-02-02. (At that time, the date of the most recent commit that
was found in the repository was 2017-01-08.) If you discover any
rendering problems in this HTML version of the page, or you believe
there is a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
man-pages@man7.org
Local 8 Nov 1994 SETKEYCODES(8)
Pages that refer to this page: showkey(1)
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