Ubuntu 12.04

The touchscreen does not completely function. The regular mouse moves the cursor fine. On some level Ubuntu sees the touchscreen, and I can view a character rendition of the digital data.

sudo cat /dev/ttyS4
and touching the screen gives me random characters, so some data is flowing, but not as a mouse.

This also works for /dev/input/input4, /dev/input/mouse1 and /dev/input/mice
When using /dev/input/mice than both my regular mouse and the touchscreen put out the characters.

i use serialattach in the rc.local file

xinput shows Elo Serial Touchscreen at ID 10

How do I finish configuring ubuntu for this device?