Comment 21 for bug 210725

Well, the first thing you want to check is whether the interface is created by udev:
run ifconfig and iwconfig and see if you have a wireless interface.
- if it's not there, look at the kernel log (dmesg) for any errors right after you modprobe the module
- if it's there, you might need to do a "sudo ifconfig wlan0 up" (or whatever interface name you have instead of wlan0)