I have a HP dv6110us which came with the 4311 wireless card. when you use lspci it out puts this
03:00.0 Network controller: Broadcom Corporation Dell Wireless 1390 WLAN Mini-PCI Card (rev 01)
There was another post, now archived about people with the Dell notebooks having the same problem just theres showed up as Broadcom 4311.

can't link to post as i don't have 15 post yet... Just search for 4311

The card seems to work fine except the slow speeds and i think i have found a fix for that on the bcm43xx site.

Can this keep it from working right???
Is there a way to fix this???