I’ve just seen the
indi_joystick
driver. Once added as as AUX device, connecting an USB Joystick I can control the focuser. I’ve also installed
sudo apt-get install joystick
and added a Bluetooth PS4 controller. I hoped in an analog control (slow focus in to fast focus in and the same for focus out) but I see only "Focus in", "Focus out" and "Abort focus" buttons.