I think I have answered my own question (see post D-Link DWA-160 …) One has to replace the rt2870sta module that openSuse 11.4 uses by default, with rt3572sta. My technique is probably bad, but this is how I did it.
First, get rt3572sta.
Go to YAST - Software Repositories - Add - HTTP
Enter a name (e.g. Wireless Divers) and complete the URL as follows (after the http://)
Having added this repository, go to YAST - Software Management
Look at what is in the Repository you have just added
You should find that Yast has automatically selected 4 files; the rt3572sta stuff!
Proceed with installing this selection.
Next, get rid of rt2870sta.
Go to System - File Manager - Super User Mode (root password needed)
Navigate to /etc/modprobe.d/ folder
Inside is a file 50-blacklist.conf - Click on this to open it.
Add to it the following lines
# I did this cos some idiot told me to
Check if what you have done works.
Reboot and with luck your wireless adapter now won’t work at all
Open a terminal and type
su (enter root password)
* modprobe -i rt3572sta*
Close the terminal
With luck, your wireless adapter will now show signs of life.
Make loading of rt3572sta automatic.
Go to YAST - System - etc/sysconfig Editor - System - Kernel - Modules loaded on boot
Type in rt3572sta
If all goes well, your D-Link DWA-160 will now connect at 802.11n speeds (I get 270Mb/s instead of the 54Mb/s I always got with rt2870sta), and it will operate dual-band. The LED won’t work, though, but I can live with that. Here are the results of lsusb, lsmod and iwconfig for me, after doing all the above. Have lots of fun …
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 07d1:3c11 D-Link System DWA-160 Xtreme N Dual Band USB Adapter(rev.B) [Ralink RT2870]
Bus 001 Device 005: ID 04b8:0121 Seiko Epson Corp. Perfection 2480 Photo
Bus 002 Device 002: ID 0424:2504 Standard Microsystems Corp. USB 2.0 Hub
Bus 003 Device 002: ID 0471:0329 Philips (or NXP) SPC 900NC PC Camera / ORITE CCD Webcam(PC370R)
Bus 003 Device 003: ID 03f0:1604 Hewlett-Packard DeskJet 940c
pierre@ATHLON64x2:~> lsmod | grep rt
rt3572sta 550262 1
ATHLON64x2:/home/pierre # iwconfig
lo no wireless extensions.
eth0 no wireless extensions.
wlan0 Ralink STA ESSID:“Belkin.9E54” Nickname:“RT2870STA”
Mode:Managed Frequency=2.422 GHz Access Point: 94:44:52:AA:3E:54
Bit Rate=270 Mb/s
RTS thr:off Fragment thr:off
Encryption key:8391-EC60-1A87-7A7F-38B1-8558-0537-EA3F Security mode:restricted Security mode:open
Link Quality=100/100 Signal level:-62 dBm Noise level:-80 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0