I got a bluetooth keyboard connected to PS3, but it won't work in game.

I tested the keyboard by connecting it to iPad and all key works fine.

Reconnected to PS3 but in game nothing happens.
Some say the "enable direct chat" needed to be turned on.
I tried that on and off, nothing happens.

Is it only certain types of keyboard works with the game, or there are more test I can do to confirm the keyboard is in fact working with PS3?
Will the patch this wednesday update this?