Second LPT port - SOLVED!

Thanks for putting up these instructions. I followed them to add a second parallel port, and linuxcnc now doesn't give any warnings when I run the 2 port tester. The on board port works with the tester, but the second port outputs are all stuck at 5V, regardless of what I toggle. Do you know what could be the problem?

I tried the first address from lspci -vv  again, and it worked - I ignored the warning from dmesg and can now get the port working in output mode