Для включения поддержки стандарта 802.11n необходимо добавить в конфиг ядра опцию ATH_ENABLE_11N (options ATH_ENABLE_11N) и затем пересобрать ядро:
make buildkernel KERNCONF=MYCONF
make installkernel KERNCONF=MYCONF
Для отладки так же могут потребоваться опции AH_DEBUG, ATH_DEBUG, ATH_DIAGAPI. Если все прошло успешно, то после перезагрузки системы, в выводе ifconfig должен появиться "mode 11ng"
До пересборки ядра:
ath0: flags=8843<up,broadcast,running,simplex,multicast> metric 0 mtu 2290
ether 75:1b:40:83:4f:e3
nd6 options=9<performnud,ifdisabled>
media: IEEE 802.11 Wireless Ethernet autoselect mode 11g <hostap>
status: running
После пересборки ядра:
ath0: flags=8843<up,broadcast,running,simplex,multicast> metric 0 mtu 2290
ether 75:1b:40:83:4f:e3
nd6 options=9<performnud,ifdisabled>
media: IEEE 802.11 Wireless Ethernet autoselect mode 11ng <hostap>
status: running
Так же вывод команды "ifconfig -v wlan0 list channel" должен содержать каналы "ht".
# ifconfig -v wlan0 list channel
Channel 1 : 2412 MHz 11b Channel 7 : 2442 MHz 11g
Channel 1 : 2412 MHz 11g Channel 7 : 2442 MHz 11g ht/20
Channel 1 : 2412 MHz 11g ht/20 Channel 7 : 2442 MHz 11g ht/40+
Channel 1 : 2412 MHz 11g ht/40+ Channel 7 : 2442 MHz 11g ht/40-
Channel 2 : 2417 MHz 11b Channel 8 : 2447 MHz 11b
Channel 2 : 2417 MHz 11g Channel 8 : 2447 MHz 11g
Channel 2 : 2417 MHz 11g ht/20 Channel 8 : 2447 MHz 11g ht/20
Channel 2 : 2417 MHz 11g ht/40+ Channel 8 : 2447 MHz 11g ht/40-
Channel 3 : 2422 MHz 11b Channel 9 : 2452 MHz 11b
Channel 3 : 2422 MHz 11g Channel 9 : 2452 MHz 11g
Channel 3 : 2422 MHz 11g ht/20 Channel 9 : 2452 MHz 11g ht/20
Channel 3 : 2422 MHz 11g ht/40+ Channel 9 : 2452 MHz 11g ht/40-
Channel 4 : 2427 MHz 11b Channel 10 : 2457 MHz 11b
Channel 4 : 2427 MHz 11g Channel 10 : 2457 MHz 11g
Channel 4 : 2427 MHz 11g ht/20 Channel 10 : 2457 MHz 11g ht/20
Channel 4 : 2427 MHz 11g ht/40+ Channel 10 : 2457 MHz 11g ht/40-
Channel 5 : 2432 MHz 11b Channel 11 : 2462 MHz 11b
Channel 5 : 2432 MHz 11g Channel 11 : 2462 MHz 11g
Channel 5 : 2432 MHz 11g ht/20 Channel 11 : 2462 MHz 11g ht/20
Channel 5 : 2432 MHz 11g ht/40+ Channel 11 : 2462 MHz 11g ht/40-
Channel 5 : 2432 MHz 11g ht/40- Channel 12 : 2467* MHz 11b
Channel 6 : 2437 MHz 11b Channel 12 : 2467* MHz 11g
Channel 6 : 2437 MHz 11g Channel 12 : 2467* MHz 11g ht/20
Channel 6 : 2437 MHz 11g ht/20 Channel 13 : 2472* MHz 11b
Channel 6 : 2437 MHz 11g ht/40+ Channel 13 : 2472* MHz 11g
Channel 6 : 2437 MHz 11g ht/40- Channel 13 : 2472* MHz 11g ht/20