I have an adapter with the same chipset (http://www.rosewill.com/products/s_1280 ... Detail.htm
) which only kind-of worked (but crashed after a couple of minutes when lucky) on 2.6.37 but now works seemingly perfectly in 2.6.38 even in master mode as an AP at 802.11n. I did not have to do any blacklisting, etc. My only complaint is that this is the only one I could get working correctly in AP mode of my two types of adapters and this one is only a 150mbps adapter. My other one is a realtek based adapter which does support 300mbps but is still poorly supported.
The module that you need to use is rt2800usb (confirmed in my lsmod) which is built into the kernel and apparently fixed in 2.6.38. That being said, it seemed to work OK in 2.6.37 as a wireless client for me though I did not do much testing of that since I have my plug wired on gigabit to my network.