This driver has been tested on a Debian 2.2r2 kernel 2.2.18. It compiles and works (at least for me).
Anyway it requires to be compiled using gcc 2.7.2.
Conversely, examples do not compile. We did not bother to port them to the 2.2.x kernels. Anyway, Michal Zawada sent me a e-mail stating that he was able to compile examples using the source of the 0.5 driver.
I did not try to replicate the experiment, but feel free to do it.
Download the linux driver for the National Instruments LabPC+ I/O adapter (labpc-0.6.tar.gz).