when you use USB your mouse device changes from /dev/psaux to /dev/input/mice.
Typically, there is a soft link from /dev/mouse to /dev/psaux.
To use USB:
Code:
cd /dev
rm /dev/mouse
ln -s /dev/input/mice /dev/mouse
to revert to PS/2 (in case it still doesn't work)
Code:
cd /dev
rm /dev/mouse
ln -s /dev/psaux /dev/mouse
As far as automagically loading the modules, I dunno... (Don't use em, like big kernels
)