Hallo,
zunächst hier die Ausgabe von jstest.
$ jstest /dev/input/js0
Driver version is 2.1.0.
Joystick (WAILLY PPM) has 8 axes (X, Y, Z, Rx, Ry, Rz, Hat0X, Hat0Y)
and 12 buttons (Trigger, ThumbBtn, ThumbBtn2, TopBtn, TopBtn2, PinkieBtn, BaseBtn, BaseBtn2, BaseBtn3, BaseBtn4, BaseBtn5, BaseBtn6 ...