I'm using a BCM43224 card on a Macbook Air. Connecting to my router from OSX provides a full 40MHz connection at 5GHz, but with BCMA on linux i'm stuck at 20MHz. Is anyone here getting 40MHz with their BCMA cards?
Router: WNDR3700v2 running OpenWRT 12.09-beta2
Channel: 48 (HT-)