How to configure wireless lan in Lenovo s10 or s20 in Ubuntu

It is really easy to configure wireless lan card in your lenovo s10. Its default driver won’t work properly in Linux. So do the following command.
# apt-get –reinstall install bcmwl-kernel-source

Now go to  System -> Administration -> Hardware driver , here you can see Brodcom  STA wireless driver. Reboot your laptop and connect to wireless.

Some usefull urls,