BlueZ (Andoroid) Keys mapping for Ipega (Bluetooth HID contoller) and GTA3.

ipega

Dpad Left    DPAD_LEFT    walk left
Dpad Right   DPAD_RIGHT   walk right
Dpad Up      DPAD_UP      walk forward
Dpad Down    DPAD_DOWN    walk backwards

Button A   3   jump / break or reverse
Button B   7   handbrake
Button X   1   run / accelerate
Button Y   2   shoot
Button L   6   change weapon down / look left in car
Button R   8   change weapon up / look right in car

Start Button    4   enter car
Select Button   5   tune radio

Left Nub Up      W   walk forward
Left Nub Down    S   walk backwards
Left Nub Left    A   look left
Left Nub Right   D   look right

Right Nub Up      UNKNOWN
Right Nub Down    0 honk
Right Nub Left    VOLUME_DOWN 
Right Nub Right   VOLUME_UP