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Having trouble installing a piece of hardware? Want to know if that peripheral is compatible with Linux?


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Old 06-07-2004, 11:15 AM   #1
Registered: Sep 2003
Distribution: Debian (server), Ubuntu (workstation)
Posts: 39

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Multimedia Keyboard Support


I want to use the additional keys of my Cyboard multimedia keyboard from Cherry (Model RS 13000 Combo), mainly the volume and mute keys.
Is there a possibility to use this in Linux.

Any hints would be appreciated.

Thanks in advance,
Old 06-07-2004, 11:32 PM   #2
LQ Newbie
Registered: Jun 2004
Distribution: Gentoo
Posts: 13

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There is a very good chance.
First the keyboard may just send these as regular keys with nonstandard keycodes. In this case you will just need to map them to some actions through some program. GNOME and KDE will do
Other keyboard use special system called hotkeys defined in the Human interface device protocol. Microsoft keyboards follow that. And if the code is not defined it will send some other keycode as well.

So your keyboard should generate the keycodes if it follows one of these methods. The only danger is that the driver will map two keys to the same keycode.

You may still need to configure these keys (Microsft standard ones are mapped correctly to the MEDIA keys AFAIK) through tools like xmodmap.

But then again, I may give you wrong advice. I have read that section of the kernel, but I do not know if it is correct for ALL keyboards.
Old 06-13-2004, 01:28 PM   #3
LQ Newbie
Registered: Jan 2004
Location: Munich,Germany
Distribution: Slackware 10 - 2.6.7
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these are the steps you have to do (i think)

to determine the keycode use "xev"
edit your ~/.Xmodmap and use F13-F20 because your keyboard doesnt have these keys (i guess)
make sure your Xmodmap will be used
edit the shortcut keys of the programs
Old 06-13-2004, 03:01 PM   #4
Registered: Sep 2003
Distribution: Debian (server), Ubuntu (workstation)
Posts: 39

Original Poster
Rep: Reputation: 15

thank you very much for this hint.
It works perfectly.
I wrote scripts which control amix and xmms (see "amix -h" and "xmms -h"). I start these scripts from KDE in background. I created a folder in the KDE startmenu in which I include links to the scirpts. These links are activated upon pressing a hotkey defined in ~/.Xmodmap.

EVERYTHING works with Linux, you've only to know how to do it! :-)

Thank you!



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