Question about rumble on Android?

[lovrenco]

I know it is a bit off topic, but does developer knows why rumble function does not work on Android?
Since this device is made for Android it should work out of the box, without special driver?

Anyway, I tested it with ePsxe emulator and with Mupen64 emulator, gamepad works OK, but rumble (dual shock) not.
Gamepad vibration works, because it vibrates during initial bluetooth connection.
Is there some .apk driver to install? Is there some Gamepad profile i must include/edit?

Maybe to try to set Gamepad as XBOX360 gamepad or something like that? I'm running short on ideas here. Any help would be appreciated, Thanks.