[Solved] Assign keycodes to scancodes - are there not used keycodes?

PhotonX · 2015-10-13 18:59:00

Hello community,

the title is quite poorly formulated, let me try to explain. I'm using a Thinkpad X200T which has some extra keys on its screen. These keys are not recognized by xev, that is, they generate no keycodes. However, following the steps in https://wiki.archlinux.org/index.php/Ma … o_keycodes I was able to find out the scancodes and assign keycodes to them. My aim is to assign some specific actions to these keys, i.e. run some script or a shortkey. I would use xbindkeys and assign some commands to the keycodes.

So far everything works fine. However, I'm a bit puzzled which keycodes to use. The keycodes are supposed to be merely a bridge between the scancodes and xbindkeys. That is, I probably shouldn't use the keycode of, say, the A key - otherwise xbindkeys will steal the keypress events and I won't be able to use the A key any more. This, however, applies to all of the keys on the keyboard, all of them are potentially useful. Therefore, my question is: Which keycodes to use such that no keys are spoiled? Or is there another way to map scancodes to actions directly?

Thanks in advance,
Photon

Last edited by PhotonX (2015-10-14 21:09:29)

zamzing · 2015-10-14 20:53:58

I found the following command helpful in finding unused keycodes:

$ xmodmap -pke

See this article and xmodmap for more details.

PhotonX · 2015-10-14 21:09:11

Big thanks, this solves the problem!

progandy · 2015-10-14 21:27:26

By the way, you might want to use the symbols XF86RotateWindows for the rotation and XF86Tools for the toolbox button, they are probably assigned to a keycode already.

Last edited by progandy (2015-10-14 21:29:36)

PhotonX · 2015-10-15 10:12:50

Thanks, that's a good idea!

Arch Linux

#1 2015-10-13 18:59:00

[Solved] Assign keycodes to scancodes - are there not used keycodes?

#2 2015-10-14 20:53:58

Re: [Solved] Assign keycodes to scancodes - are there not used keycodes?

#3 2015-10-14 21:09:11

Re: [Solved] Assign keycodes to scancodes - are there not used keycodes?

#4 2015-10-14 21:27:26

Re: [Solved] Assign keycodes to scancodes - are there not used keycodes?

#5 2015-10-15 10:12:50

Re: [Solved] Assign keycodes to scancodes - are there not used keycodes?

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