pl2303.ko and usbserial.ko are needed to connect any gadget through USB with a cable "USB to serial".
With this you can programme for your gadgets, transfer data, and control a lot of things.

The only you have to do is download usbserial.ko and pl2303.ko and type into n8X0 terminal (root):
insmod usbserial.ko
insmod pl2303.ko
and fun!

for more information visit http://www.behindmaemolines.blogspot.com/

here I put the files: