By the way, recently I bought "Boogie Board RIP" from some shop in Akihabara which discounts to 2,500 JPY. This tablet enables to save your drawing or writing as PDF file. And manufacture of this board serve software "Virtual Desktop Companion Software" which makes tablet as writing tablet for Windows OS, not for Linux.
However, some of earlier hacker investigated and wrote about how to get realtime information of tablet ( Oliver Migeot and Mark Johnson ).
I wrote linux driver for Boogie Board RIP on github.com. And if you are Ubuntu user, DKMS PPA is also available. ( Note that boogie driver is not well tested. )
On Ubuntu Terminal;
$ sudo add-apt-repository ppa:hchonan/boogie $ sudo apt-get update $ sudo apt-get install boogie-dkms
and plug your Boogie RIP to PC, it will work as writing tablet associate with x.org evdev driver. Evdev driver will be installed as part of default Ubuntu(Unity) desktop environment.