In a related bug, I have tested mainline kernel 3.4 rc2 and it works for Ubuntu 12.04 with a Sony Vaio laptop with the RT3090 chipset wifi.
I could not get it working with the current kernel in 12.04 which is 3.2 .0-22-generic. It just repeatedly tried to connect to the wifi and asked me for password but never connected.
In a related bug, I have tested mainline kernel 3.4 rc2 and it works for Ubuntu 12.04 with a Sony Vaio laptop with the RT3090 chipset wifi.
I could not get it working with the current kernel in 12.04 which is 3.2 .0-22-generic. It just repeatedly tried to connect to the wifi and asked me for password but never connected.
https:/ /bugs.launchpad .net/ubuntu/ +source/ linux/+ bug/978047
The link for the kernel download is in that other bug link.