CONFIG_ATH9K_HW (not configurable)

modulename: ath9k_hw.ko

configname: CONFIG_ATH9K_HW

Linux Kernel Configuration
└─>Device Drivers
└─>Network device support
└─>Wireless LAN
└─>ATH9K_HW
In linux kernel since version 2.6.33 (release Date: 2010-02-24)  
source code:
drivers/net/wireless/ath/ath9k/