X301 audio

I have a Lenovo X301 laptop with FreeBSD on it.

To get the speakers to stop playing, and the headphones to start playing, when I plug the headphones in, I have the following bit in /boot/device.hints</boot>:

hint.hdac.0.cad0.nid22.config="as=1 seq=15 device=Headphones"
hint.hdac.0.cad0.nid26.config="as=1 seq=0 device=Speaker"
hint.hdac.0.cad0.nid24.config="as=2 seq=15"
hint.hdac.0.cad0.nid29.config="as=2 seq=0"