Plug the Sony UWA-BR Wi-Fi adapter into your computer. The driver Download the driver for the Atheros AR I was able to get it at. Qualcomm Atheros has open-sourced the firmware for the AR and AR n WiFi chipsets. The source-code to the firmware as. The AR+AR chipset is probably the best chipset for a USB WiFi adapter in Linux, for client use - you get to use ath9k_htc. This device has a 0x6a.