I emailed an account of my 1200 stylus woes to John Apfelbaum of http://www.linuxslate.com/ and received the following information:
> The problem is the _order_ in which you do the setserial stuff.
> Try it this way:
> setserial /dev/ttyS3 IRQ 15 port 0xfce8
> setserial /dev/ttyS3 autoconfig
> setserial /dev/ttyS3 baud_base 115200
> At this point do just
> setserial /dev/ttyS3
> and verify that it correctly identifies the type of UART. If it says
> UART=unknown, then the kernel is not seeing the serial port properly.
> If you do the autoconfig or the baud_base before you have told it the
> where that strange serial port is, then it can't find the port to
I followed his advise and the pen came right up. Hopefully this will help some folks avoid a little configuration pain.
Now to xvkbd & xscribble setup...