Hi, I've managed to get the 16 bit 8 axes + 4 hats working with Teensy 3.0.
Attached are the 4 changed files from the teensy3 dir. I'm new, so I'm not sure where i could submit patches?
Couple notes: instead of 16 bytes, now the JOYSTICK_SIZE is 24, and the usb_joystick_data has 5 array...