While the wireless tools - et all - have been
fairly successful at lighting up nearly all
wlan radios I've tested thus far (nearly 2 dozen),
I encountered one the other day - built into a lap top
that didn't respond to IFCONFIG WLAN0 UP etc.
or anything else.
Is there a model/type etc. or the dmesg
that I could post that might help you
"add" that unit to the successes you already have
or perhaps some other method I might try to
kick start that puppy into gear.