neowalla wrote: This is pretty much the last straw with mesa. Their documentation sucks. If anyone has any ideas, I'll try one last time then I'm ripping it out and putting it up on ebay.
The problem might be that the Mesa documentation only documents the cards, which can be used in many different types of system of which LinuxCNC is only one.
So, in addition to the Mesa docs you also need to look at the LinuxCNC driver docs.
linuxcnc.org/docs/2.7/html/man/man9/hm2_eth.9.html
Now, I will admit that those, too, are rather terse and may not answer all your questions, but there is useful info there about how you need to configure the Linux PC in order to communicate with the Mesa card.
