dpad of DS4 cannot be detected on OSX

[wow39001]

Hi,
I have some trouble with Dualshock 4's dpad on osx 10.9. There is no way for me to detect it.
I suppose dpad should be mapped to some axis. Now my X/Y axis mapped to the left stick, Z/R mapped to the right.
According to the return value from sf::Joystick::hasAxis, U/V are available too, while PovX/PovY don't. However U/V don't response to the dpad.
Does anyone have clue?

Thanks!

[Laurent]

This is usually a driver issue. Does it work in non-SFML apps?

[wow39001]

I haven't try much. As far as I know, SDL have this issue too. However, the dpad of DS4 works fine in Steam.