|
Packit Service |
50ad14 |
|
|
Packit Service |
50ad14 |
<HTML>
|
|
Packit Service |
50ad14 |
<HEAD>
|
|
Packit Service |
50ad14 |
<META NAME="GENERATOR" CONTENT="SGML-Tools 1.0.9">
|
|
Packit Service |
50ad14 |
<TITLE>The Linux keyboard and console HOWTO: Unusual keys and keyboards</TITLE>
|
|
Packit Service |
50ad14 |
<LINK HREF="kbd.FAQ-15.html" REL=next>
|
|
Packit Service |
50ad14 |
<LINK HREF="kbd.FAQ-13.html" REL=previous>
|
|
Packit Service |
50ad14 |
<LINK HREF="kbd.FAQ.html#toc14" REL=contents>
|
|
Packit Service |
50ad14 |
</HEAD>
|
|
Packit Service |
50ad14 |
<BODY>
|
|
Packit Service |
50ad14 |
Next
|
|
Packit Service |
50ad14 |
Previous
|
|
Packit Service |
50ad14 |
Contents
|
|
Packit Service |
50ad14 |
|
|
Packit Service |
50ad14 |
|
|
Packit Service |
50ad14 |
|
|
Packit Service |
50ad14 |
|
|
Packit Service |
50ad14 |
|
|
Packit Service |
50ad14 |
keyboard!unusual versions of
|
|
Packit Service |
50ad14 |
-->
|
|
Packit Service |
50ad14 |
|
|
Packit Service |
50ad14 |
|
|
Packit Service |
50ad14 |
keyboard!non-standard keys on
|
|
Packit Service |
50ad14 |
-->
|
|
Packit Service |
50ad14 |
The two keys PrintScrn/SysRq and Pause/Break are special in that they
|
|
Packit Service |
50ad14 |
have two keycodes: the former has keycode 84 when Alt is pressed
|
|
Packit Service |
50ad14 |
simultaneously, and keycode 99 otherwise; the latter has keycode
|
|
Packit Service |
50ad14 |
101 when Ctrl is pressed simultaneously, and keycode 119 otherwise.
|
|
Packit Service |
50ad14 |
(Thus, it makes no sense to bind functions to Alt keycode 99 or
|
|
Packit Service |
50ad14 |
Ctrl keycode 119.) The Pause/Break key is also special in another way:
|
|
Packit Service |
50ad14 |
it does not generate key-up scancodes, but generates the entire
|
|
Packit Service |
50ad14 |
6-scancode sequence on key-down.
|
|
Packit Service |
50ad14 |
If you have strange keys, that do not generate any code under Linux
|
|
Packit Service |
50ad14 |
(or generate messages like "unrecognized scancode"), and your kernel
|
|
Packit Service |
50ad14 |
is 1.1.63 or later, then you can use setkeycodes(1) to tell the kernel
|
|
Packit Service |
50ad14 |
about them. Once they have gotten a keycode from setkeycodes,
|
|
Packit Service |
50ad14 |
they can be assigned a function by loadkeys.
|
|
Packit Service |
50ad14 |
For example, using showkey -s one sees that Microsoft keyboards
|
|
Packit Service |
50ad14 |
use the scancode sequences (in hexadecimal) e0 5b (left Windows key),
|
|
Packit Service |
50ad14 |
e0 5c (right Windows key), e0 5d (Menu key).
|
|
Packit Service |
50ad14 |
Microsoft Internet keyboard also uses e0 6a (Back), e0 69 (Forward),
|
|
Packit Service |
50ad14 |
e0 68 (Stop), e0 6c (Mail), e0 65 (Search), e0 66 (Favorites),
|
|
Packit Service |
50ad14 |
e0 32 (Web/Home), e0 6b (My Computer), e0 21 (Calculator), e0 5f (Sleep).
|
|
Packit Service |
50ad14 |
Use dumpkeys to see what keycodes are still unused.
|
|
Packit Service |
50ad14 |
Typically values like 89-95 and 112-118 and 120-127 are free.
|
|
Packit Service |
50ad14 |
Now
|
|
Packit Service |
50ad14 |
|
|
Packit Service |
50ad14 |
|
|
Packit Service |
50ad14 |
% setkeycodes e05b 125
|
|
Packit Service |
50ad14 |
% setkeycodes e05c 126
|
|
Packit Service |
50ad14 |
% setkeycodes e05d 127
|
|
Packit Service |
50ad14 |
|
|
Packit Service |
50ad14 |
|
|
Packit Service |
50ad14 |
|
|
Packit Service |
50ad14 |
assigns keycodes to these scancode sequences, and
|
|
Packit Service |
50ad14 |
|
|
Packit Service |
50ad14 |
|
|
Packit Service |
50ad14 |
% loadkeys
|
|
Packit Service |
50ad14 |
keycode 125 = Decr_Console
|
|
Packit Service |
50ad14 |
keycode 126 = Incr_Console
|
|
Packit Service |
50ad14 |
keycode 127 = KeyboardSignal
|
|
Packit Service |
50ad14 |
%
|
|
Packit Service |
50ad14 |
|
|
Packit Service |
50ad14 |
|
|
Packit Service |
50ad14 |
|
|
Packit Service |
50ad14 |
would make these Windows keys go to the previous or next virtual console,
|
|
Packit Service |
50ad14 |
and let the Menu key create a fresh virtual console (in case you have
|
|
Packit Service |
50ad14 |
something like spawn_console running).
|
|
Packit Service |
50ad14 |
|
|
Packit Service |
50ad14 |
|
|
Packit Service |
50ad14 |
|
|
Packit Service |
50ad14 |
|
|
Packit Service |
50ad14 |
Many modern keyboards have buttons or keys with labels like
|
|
Packit Service |
50ad14 |
"Vol Up", "Eject" etc. that suggest actions rather than strings.
|
|
Packit Service |
50ad14 |
Of course one can bind shell commands to them, but then they'll
|
|
Packit Service |
50ad14 |
work only when you are at a shell prompt.
|
|
Packit Service |
50ad14 |
Rick van Rein wrote a package funkey consisting of a kernel patch
|
|
Packit Service |
50ad14 |
and a daemon. The kernel patch creates a new character device,
|
|
Packit Service |
50ad14 |
and adds a new key type to indicate which keystrokes should be
|
|
Packit Service |
50ad14 |
sent to this new character device. A daemon can now listen to
|
|
Packit Service |
50ad14 |
the character device, somewhat like gpm listens to the
|
|
Packit Service |
50ad14 |
mouse device, and perform the actions indicated in its config file.
|
|
Packit Service |
50ad14 |
See
|
|
Packit Service |
50ad14 |
rick.vanrein.org/linux/funkey.
|
|
Packit Service |
50ad14 |
|
|
Packit Service |
50ad14 |
|
|
Packit Service |
50ad14 |
Next
|
|
Packit Service |
50ad14 |
Previous
|
|
Packit Service |
50ad14 |
Contents
|
|
Packit Service |
50ad14 |
</BODY>
|
|
Packit Service |
50ad14 |
</HTML>
|