https://bugs.freedesktop.org/show_bug.cgi?id=73338
--- Comment #31 from Chernovsky Oleg adonai@xaker.ru --- A quick update - I was finally able to retrieve all needed data from fglrx (via some ADL SDK overdrive6 tinkering). It seems there is a lot of work (e.g. there is a feature for setting series of pairs temperature<->fanspeed), but at least I figured out the purpose of used registers and data values (I hope).
So I'll try to come up with basic functionality and hwmon interface this week.