CDJ 850 HID already working?

Hi all and greetz! I am new to mixx and im looking to get my CDJ 850s to work in mixxx as HID controllers under ubuntu (Zorin OS)

I have read all topcs related to 850s but couldnt find a satisfying solution. Has one of you an idea how i can get the 850s to work as a normal HID interface?

Thanks Markus