playstation 2 dual shock controller with linux square, X and circle dont work

i have a USB to Playstation 2 Dual shock2 game controller adapter that is working perfectly fine under windows, unfortunately in linux im running lubuntu 18.04 Linux 4.15.0-42-generic #45-Ubuntu SMP Thu Nov 15 19:32:57 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux, and the following 3 buttons dont seem to work/exist square, X and circle, while checking under "cat /dev/input/eventX" all buttons give some response/output but the 3 mentioned ones (sqaure, X and Circle) dont do anything so it appears like they dont exist at all, i wonder what the issue is and if anyone can help with this. thank you in advance.