I'm running a pfsense VM with a 2port NIC and an Atheros Wifi card passed through.   (I have a slightly unreliable POINT to POINT LTE connection, and occasional mission critical internet requirements - So the Wifi card is set to automatically connect to my cell phone hotspot)   I had trouble getting this Wifi card to work with an error message referencing hostdev1 or something not fitting in BARs.     I searched, I posted, I got a great answer from Ghost8