As I see, iwn driver in OpenBSD is very old and misses necessary iwn-6005 code (init and advanced bt coexistence especially) which is present in iwn from FreeBSD. Sync of code with proper adaptation to OpenBSD is needed to get it working, otherwise it gives kernel panic if we just add send_advanced_btcoex function and invoke it in iwn-6005 init code. Use newest iwn-6005 firmware images in order not to get any firmware-related errors. Also note that device is named <Intel Centrino Wireless-N 130> in FreeBSD.
Cheers!
