Networking :: Help with D-Link DWL-650
After loading the driver with "modprobe prism2_cs" did you run "ifconfig" or "ifconfig -a"?
"ifconfig" will only list active interfaces, "ifconfig -a" will list all interfaces.
But the fact that the first "wlanctl-ng wlan0 ..." command returned "no such device" or similar suggests to me that your adaptor is not going to work with DSL's linux-wlan-ng drivers.
You could consider doing a hard drive install, installing the build tools, and compile a more recent version of the linux-wlan-ng drivers ...
or the easier option would be to try ndiswrapper.
original here.