Default splashtop + xpadder/controller, possible?

hello guys, I just installed splashtop in my eeepad. it looks wonderful, I was trying to stream pcsx2 (a ps2 emulator). there is a bit lag, but still acceptable. now I'm wondering whether there is any way to connect controller on the dock.

I'm using xpadder to bind my controller with keyboard keys so I don't need to change configuration everytime I installed a game in my pc. I also use x360ce, an emulator to emulate x360 controller for my steam games

it seems my ps2 usb controller is detected by the dock/tablet however I'm not sure what to do next. anyone can give me a hint?