Messages in this thread | | | From | "H. Peter Anvin" <> | Subject | Re: PATCH: Four function buttons on DELL Latitude X200 | Date | 9 Dec 2002 11:33:19 -0800 |
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Followup to: <E18LBeK-00046y-00@calista.inka.de> By author: Bernd Eckenfels <ecki@calista.eckenfels.6bone.ka-ip.net> In newsgroup: linux.dev.kernel > > In article <m3d6ocjd81.fsf@Janik.cz> you wrote: > > this patch add support for four functions key on DELL Latitude X200. > > we need a more generic appoach to handle those key codes for various > extensions. I think a pure software reconfiguration of the keymaps or a > daemon trakcing the raw codes is fine. Perhaps we can make something like a > hook into the kernel where all untrapped function keys are send to in raw > format? >
The PC only has so many possible keycodes (with E0 and E1 it's still in the sub-300 range.) It won't fit within 128, but I would really like an algorithmic mapping from scancodes to keycodes so we don't continue to have this problem.
For example, using a 16-bit keycode model:
Scancode Keycode (binary) mxxxxxxx m0000000 0xxxxxxx E0 mxxxxxxx m0000000 1xxxxxxx E1 mxxxxxxx yyyyyyyy mxxxxxxx yyyyyyyy
m = make/break bit
-hpa
-- <hpa@transmeta.com> at work, <hpa@zytor.com> in private! "Unix gives you enough rope to shoot yourself in the foot." http://www.zytor.com/~hpa/puzzle.txt <amsp@zytor.com> - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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