Even if you get the IPW3945 working, it will only go into monitor mode but won't inject. Also, IMO built-in mini-PCI cards generally suck in terms of performance. Your best bet is to buy a better supported card.PW3945
* Driver : IPW3945
* Special Notes : Enable the drivers via KDE menu or cd /usr/src/drivers/ipw3945-1.2.0/ && ./load
* Special Notes : Enters monitor mode, but cannot inject
* Special Notes : You may need to start the image with "bt irqpoll" Good way to tell: you see what looks like function call backtraces on startup and the suggestion to run "bt irqpoll" scrolls by pretty fast. Check your dmesg for more details if it scrolls too fast for you.