The Linux Wacom Project manages the drivers, libraries, and documentation for configuring and running Wacom tablets under the Linux operating system. It contains diagnostic applications as well as updated kernel drivers and XFree86/Xorg XInput drivers.
sudo apt-get update
sudo apt-get install wacom-dkms
Don’t forget to register your tablet at the Wacom website, because you can specify Linux as your operating system.
Next, download the latest linuxwacom driver (0.8.6 at the moment of writing):
Now unpack, configure compile and install it:
cd src/2.6.x/ # I know this is the wrong version, but it's the highest available and it works
sudo cp wacom.ko /lib/modules/`uname -r`/kernel/drivers/input/tablet/
sudo rmmod wacom
sudo modprobe wacom
Now let me explain how to use the scroll with the Wacom. For this we will use a dedicated program for people with accessibility issues, Easystroke called.
Installed it in Ubuntu with :
sudo apt–get install easystroke
Youtube video : http://www.youtube.com/watch?v=CagAEgXAAzA&feature=player_embedded