Computer Science
LOADKEYS(1) Linux User's Manual LOADKEYS(1)
NAME
loadkeys - load keyboard translation tables
SYNOPSIS
loadkeys [ -d --default ] [ -h --help ] [ -q --quiet ] [
-v --verbose [ -v --verbose ]...] [ -m --mktable ] [ -c
--clearcompose ] [ -s --clearstrings ] [ filename... ]
DESCRIPTION
The loadkeys program reads the file or files specified by
filename...
Its main purpose is to load the kernel keymap for the con-
sole.
RESET TO DEFAULT
If the -d (or --default ) option is given, loadkeys loads
a default keymap, probably the file defkeymap.map either
in /usr/share/keymaps or in /usr/src/linux/drivers/char.
(Probably the former was user-defined, while the latter is
a qwerty keyboard map for PCs - maybe not what was
desired.) Sometimes, with a strange keymap loaded (with
the minus on some obscure unknown modifier combination) it
is easier to type `loadkeys defkeymap'.
LOAD KERNEL KEYMAP
The main function of loadkeys is to load or modify the
keyboard driver's translation tables. When specifying the
file names, standard input can be denoted by dash (-). If
no file is specified, the data is read from the standard
input.
For many countries and keyboard types appropriate keymaps
are available already, and a command like `loadkeys uk'
might do what you want. On the other hand, it is easy to
construct one's own keymap. The user has to tell what sym-
bols belong to each key. She can find the keycode for a
key by use of showkey(1), while the keymap format is given
in keymaps(5) and can also be seen from the output of
dumpkeys(1).
LOAD KERNEL ACCENT TABLE
If the input file does not contain any compose key defini-
tions, the kernel accent table is left unchanged, unless
the -c (or --clearcompose ) option is given, in which case
the kernel accent table is emptied. If the input file
does contain compose key definitions, then all old defini-
tions are removed, and replaced by the specified new
entries. The kernel accent table is a sequence of (by
default 68) entries describing how dead diacritical signs
and compose keys behave. For example, a line
compose ',' 'c' to ccedilla
means that <ComposeKey><,><c> must be combined to
<ccedilla>. The current content of this table can be see
using `dumpkeys --compose-only'.
LOAD KERNEL STRING TABLE
The option -s (or --clearstrings ) clears the kernel
string table. If this option is not given, loadkeys will
only add or replace strings, not remove them. (Thus, the
option -s is required to reach a well-defined state.) The
kernel string table is a sequence of strings with names
like F31. One can make function key F5 (on an ordinary PC
keyboard) produce the text `Hello!', and Shift+F5 `Good-
bye!' using lines
keycode 63 = F70 F71
string F70 = "Hello!"
string F71 = "Goodbye!"
in the keymap. The default bindings for the function keys
are certain escape sequences mostly inspired by the VT100
terminal.
CREATE KERNEL SOURCE TABLE
If the -m (or --mktable ) option is given loadkeys prints
to the standard output a file that may be used as
/usr/src/linux/drivers/char/defkeymap.c, specifying the
default key bindings for a kernel (and does not modify the
current keymap).
OPTIONS
-h --help
print the version number and a short usage message
to the programs standard error output and exit.
-v --verbose
Print details about changes. If used several
times, be even more verbose.
-q --quiet
Do not print standard messages.
-c --clearcompose
Clear the kernel's compose table (also called
accent table). If this option is not given, and if
this file does not contain any compose key defini-
tions, the kernel compose table is left unchanged.
-s --clearstrings
Clear the kernel string table. If this option is
not given, loadkeys will only add or replace
strings, not remove them.
FILES
/usr/lib/kbd/keymaps/ default directory for keymap files.
/usr/lib/kbd/keymaps/defkeymap.kmap default keymap loaded
by -d option.
BUGS
Note that anyone having read access to /dev/console can
run loadkeys and thus change the keyboard layout, possibly
making it unusable. Note that the keyboard translation
table is common for all the virtual consoles, so any
changes to the keyboard bindings affect all the virtual
consoles simultaneously.
Note that because the changes affect all the virtual con-
soles, they also outlive your session. This means that
even at the login prompt the key bindings may not be what
the user expects.
The default keymap should be the default keymap compiled
in the kernel (ie. the one in
/usr/src/linux/drivers/char/defkeymap.c).
SEE ALSO
dumpkeys(1), kbd_mode(1), keymaps(5).
Console tools 09 Oct 1997 1
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