http://bugs.winehq.org/show_bug.cgi?id=20388
--- Comment #2 from Ahmed El-Hajjar cdahmedeh@hotmail.com 2009-10-17 10:10:33 --- I'll use an example to make this more clear. For example, in Live for Speed, I would be able to use most of my axis on my joystick to play before 1.1.28. My joystick has 28 axis, and Wine would see about 9-10 which was sufficient. I needed to extra axis to use the triggers (they are analog) for throttle and brake). However, in later versions, only 4 axis are seen by the game. This bug also is seen in other games that use the joystick. With 4 axis, I can only use the thumbsticks.
Also, the names of the axis are retrievable by using the command "jstest /dev/input/js0".