Comment 1 for bug 669208

Thank your for reporting this issue. You are missing the absolute parameter setting for ABS_Y axis. If you replace::

  abs_parameters = {uinput.ABS_X:(0, 255, 0, 0)} #abs_min, abs_max, abs_fuzz, abs_flat

with::

  abs_parameters = {uinput.ABS_X:(0, 255, 0, 0),
                                 uinput.ABS_Y:(0, 255, 0, 0)}

then it works. Could you please test with that change and report back here the results.

However, I'm grateful for reporting this issue, because it shows me two things:
1. The whole module is badly documented (the documentation is missing totally).
2. Device-class should provide reasonable default values for abs_parameters.

Those two things will be fixed for the next release.