A13-OlinuXino-WIFI/Android 4.0.3 : uinput

[lojkoro]

Hi,
I'm using the A13-OlinuXino-WIFI to make a touchscreen with a Zaagtech IR frame multitouch frame. I've checked and /dev/uinput is not present (and is needed...) . I would like to know any suggestion on how to compile the kernel with uinput (where can I change the config to CONFIG_INPUT_UINPUT=y) or, if by any chance I've missed it and it is already compiled as a module, how can I insert it (i've already done "insmod uinput" as root and it didn't work).
I downloaded the 4.0.3 sdk linked in the wiki. I'm new at compiling linux kernels, so its been complicated to find the configuration file... Also i checked and found uinput.h (guess it is a header only module?).
Any suggestions are very much appreciated