Helmut Schaa [off-list ref] writes:

Ok, I'll sum that up. Moving the policy into user space is a good
thing if the quality values are comparable. Once mac80211 recognices
a noticable quality change we could use IWEVQUAL to notify user
space about it. Furthermore (if desired) the signal could be
extended to not only report a value between 0 and 100 but could also
contain flags indicating lost beacons, excessive retries etc.

I guess that would work.

-- 
Kalle Valo