Although really, there's no reason that they shouldn't work with the generic drivers, they don't do anything special .....
I think at the time there was an issue with power metering in the generic driver, but think I saw it fixed in a HE update a while ago. I've not tried switching back to the generic one myself.
Does it not report power after hitting configure / refresh in the generic driver?
IF not, maybe one for @mike.maxwell to take a look at.