Here are the files that I have. enjoy!
dave

The two files cardd.tgz and cardd-dos.tgz will extract into new
directories (cardd and cardd-dos).  The contents will be:


cardd-dos: Contains the complete CardD+ development kit for
	DOS/Win3.1, including 2 .doc files that describe the register
	layout of the card and the purpose of each distributed file.

	The only missing piece is a 40-some page piece documenting all
	of the API functions applications can use to interact with the
	DOS "driver".


cardd: Contains a half-assed Linux driver for the CardD+.  This driver
	should compile (at least with a 2.0.18 kernel, and probably
	any 2.0.?? kernel) and load into the kernel if you insert its
	directory into the /usr/src/linux/drivers/char directory and
	modify the .../drivers/char/Makefile file to include it in the
	build.

	As I recall, the main problem for me was that no interrupts
	were ever received from the card!  After failing to get
	interrupts for awhile, I added a #defined option
	(FAKE_INTERRUPT) that tests the logic of the driver by faking
	interrupts using timers.

	Anyway, the comments in these files are extremely extensive,
	and I humbly believe it to be a reasonable start to the
	project, _especially_ if you also have the DOS driver code to
	copy, which you do!