This is a dedicated topic for TabletMagic, an open source driver for Wacom serial devices that has been adapted to communicate with Tablet PC ISD-V4 digitizers.

So to start things off, welcome! Here's where the project stands as of today, June 2, 2009:

• The official project page is http://sourceforge.net/projects/tabletmagic/
• The current release version is TabletMagic 2.0b17d1
• Builds b14 - b15 consider all non-Apple Machine Type strings to be hackintosh systems
• Build b16 and later consider any system with a digitizer in the I/O Registry to be a TabletPC
• The driver has been tested on several TabletPC systems and now works with most.

Getting Mac OS X To See Your Digitizer
Before Mac OS X will recognize your TabletPC's digitizer hardware your digitizer's ID string must be inserted in the proper kernel extension file. TabletMagic now includes an Enable Digitizer button to automate this process. Give it a try!

Lenovo ThinkPad X61t
If you have a Lenovo ThinkPad X61t you will also need an enabler to actually turn on the digitizer hardware. All the information you need is in its own dedicated topic. (and here's the relevant post!)

Still Nothing? Try "Don't Query"
Many - indeed most - TabletPC digitizers seem to ignore the "*" (TabletID) command, which asks the tablet to identify itself. If TabletMagic finds no tablet, or claims to see an ISD-V4 tablet, but the tablet doesn't function there are two things to check. First, under the TabletPC tab make sure the Don't Query checkbox is selected. Second, make sure the actual serial port is selected instead of "Automatic." (When Don't Query is enabled the "Automatic" setting only checks the first serial port, which is sometimes not what you want.)

Diagnostic Messages
For basic troubleshooting you can open the Console application before starting TabletMagic. There you will be able to observe its diagnostic output, including your Machine Type string. Press Console's "Clear" button between attempts for the cleanest output.

Killing TabletMagic
You can kill the driver most easily using the "Kill Daemon" button in the "Extras" tab of the TabletMagic Preference Pane. If you have any other tablet driver installed on your system, remove it and reboot before trying to start TabletMagic.

TabletPC tab
Under the TabletPC tab of the TabletMagic preference pane you'll find the aforementioned Enable Digitizer and Don't Query options, plus a pair of edit boxes where you can modify the digitizer range values. If the pointer doesn't correctly follow the stylus or seems to drift near the edges of the screen you should modify these values. With the Get From Stylus checkbox enabled you can obtain the digitizer range by moving the pen all the way to the bottom right corner of the screen.

Source Code
To get the latest source code, just issue the following commands in Terminal:


For More Help
If you've read this thread thoroughly and all your posts for help have led to a dead end, contact me at my TabletMagic for TabletPC email address. If your digitizer is unsupported I may be able to provide you with a logging daemon and directly work with you to figure out its protocols.

Thank you to all those who have helped out so far. You've been supremely helpful and patient with this sometimes tedious process.

Namaste! - Scott

This post has been edited by Scott Lahteine: Jul 1 2009, 03:07 PM