nanogui: Thread: use serial mouse and touch screen

Hi,
After I try several serial mouse, only some of them will work. Maybe
it's because The power I give to the DTR and RTS not high enough. I will
try it out later.
Anyway, my question is: Is it possible to make serial mouse and touch
screen work at the same time??
because when I edit the config file to include both driver of SERMOUSE
and IPAQMOUSE(for my touch screen), only mouse will work.

thank you