It seems that the wiki is outdated, as /etc/qubes-rpc/policy/qubes.InputKeyboard
(USB qubes | Qubes OS) does not exist in dom0. I added the “ask”-line from the wiki to /qubes.USB (over the any any deny rule) - now I do no longer get the “keyboard denied” notification, but nevertheless its inputs does not show up.
adding this to /etc/qubes-rpc/qubes.InputKeyboard
(without the policy subfolder) doe snot seem to change anything.
If I try sudo usbguard list-devices in dom0 I am told “ERROR: IPC connect: service=usbguard: Connection refused”. the usb qube does not even know the usbguard command. (How to whitelist specific USB keyboard (USBGuard)?)