After 2 week of long discussions with Qground Control developers I have finally Joystick working with ground control software. FS-I6s works in joystick mode with Qground Control mobile (connected using OTG USB port). Navigation sensitivity is much better than virtual joysticka and you can control drone now as easy as regular R/C controller.

The solution works currently only with the “test daily builds” and probably I need to wait some more week for the next production version. I think overall it`s huge progress for me, now I can fly in mission modes or I can navigate copter via virtual joystick or my FS-I6S controller.

In next couple of days I need to find better OTG cable because current one is to long for me and I need to make a better connection between controller and tablet. Having joystick working on mobile I need to test it also with ardupilot  firmware and I hope it will works as well as px4.

I will be testing this solution more soon but now I`m very happy with current setup. Test movie below.