...
Yeah unfortunately it depends on the device ... I'll have to check them all ...
I think the Avalon devices are the different ones (AVA and BTB) but I'm not 100% sure ... I didn't write much of that driver

Will reply again later ...
OK had a think (and a short discussion) about it ...
I'll most likely add R% and HW% type fields to devs, summary, pool ... as required.
Better than having to know how to calculate them, and if it ever changes, I simply change it in the API.