Re: [PATCH v2 2/2] Input: atkbd - Correctly map F13 - F24

[Hans de Goede <hdegoede@redhat.com>]

Hi,

On 11-Mar-25 19:10, Werner Sembach wrote:
> Hi Hans, Hi Dimitry,
> 
> resending this too on the v2 to not cause confusion:
> 
> Regarding remapping KEY_ZENKAKUHANKAKU to KEY_TOUCHPAD_TOGGLE:
> 
> Am 11.03.25 um 19:06 schrieb Werner Sembach:
>> Currently only F23 is correctly mapped for PS/2 keyboards.
>>
>> Following to this table:
>> https://download.microsoft.com/download/1/6/1/161ba512-40e2-4cc9-843a-923143f3456c/translate.pdf
>>
>> - F24 and Zenkaku/Hankaku share the same scancode, but since in real world
>> Zenkaku/Hankaku keys seem to just use the tilde scancode, this patch binds the
>> scancode to F24. Note that on userspace side the KEY_ZENKAKUHANKAKU keycode is
>> currently not bound in xkeyboard-config, so it is (mostly*) unused anyway.
> 
> I think what the firmware vendor actually wanted to do was to send ctrl+super+f24 upon touchpad toggle. This would somewhat fall in line with, for example, the copilot key being implemented as shift+super+f23.

I agree that that seems to be the intent.

> Following this, my suggestion is to do this remapping and handle the rest in xkeyboard-config

xkeyboard config already contains mappings for F13 - F18 and F20-F23 in
/usr/share/X11/xkb/symbols/inet

So all that needs to happen there is map FK19 -> F19 and FK24 -> F24.

And then teach KDE + GNOME that ctrl+super+f24 means touchpad-toggle.

We could maybe get away with also dropping the weird mappings for FK13 - FK18
and map those straight to F13 - F18, but we need the special mappings
for F20 - F23 to stay in place to not break stuff.

Regards,

Hans