Where to check for the keyboard driver in romfs - xM Beagle

Hai,
            I am customizing my kernel for xM Beagle. When my USB
keyboard is connected to my board I am not able to detect my keyboard
under /dev/input. Can any one tell me where i need to check for the
input device to open and read in my application?

            Previously I used to open the keyboard device under /dev/
input/eventX.

Regards,
Chinnathambi

see @ /sys/module if the keyboard module is installed or not..