You're getting the -1 error, which means you need to patch your wifi driver. I spent many hours figuring this out.
Are you using aircrack-ng 1.1? or 1.0?
If you are using 1.1, you're going to have to downgrade to 1.0, then patch your wifi. Theres already a script for patching the -1 problem. Let me find it.
Hidden Content
You must
[To see links please register here]
or
[To see links please register here]
to view this content.
Your driver says, unknown, you're going to have to find the chipset, and where it says <driver-name> put in the name of your chipset, it could be anything ath9k, ath5k, b43... etc.