Yep, I was on page 5 of the thread when I asked this, he seemed to do it with /dev/mem, so...

Is there a full list of hw registers and their bits, with official names of the constants? Or do you have to 'extract' them from the MagicEyes PDF? I have 100+MB of PDFs, still haven't found one

I'll be happy to make such a list if the info is available! But it almost seems like you have to talk to the chip companies to get the info