Atheros AR2427 Wireless Network Adapter
NOTE: this page is for archival only, see the note at the end of the page.
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ath9k is a completely FOSS wireless driver for all Atheros IEEE 802.11n PCI/PCI-Express and AHB WLAN based chipsets.
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Any distribution shipping a kernel >= 2.6.27 will have ath9k present but the ath9k driver on 2.6.32 is the oldest one recommended, anything older than that is completely unsupported.
The latest ath9k driver can be obtained from backports.
To enable ath9k, you must first enable mac80211 through make menuconfig when compiling your kernel. If you do not know what this means then please learn to compile kernels or rely on your Linux distribution's kernel. Below are the options you need to enable ath9k through make menuconfig.
Networking -> Wireless -> Improved wireless configuration API Generic IEEE 802.11 Networking Stack (mac80211)
You can then enable ath9k in the kernel configuration under
Device Drivers -> [*] Network device support -> Wireless LAN -> Atheros Wireless Cards -> Atheros 802.11n wireless cards support
SB = single-band 2.4GHz DB = dual-band 2.4GHz or 5GHz
See the ath9k device list.
All of these modes of operation are supported and should work on all ath9k cards.
Modes of operation
When it went in
ath9k was announced to have been merged into Linux-2.6.27-rc3 by Linus on Tue, 12 Aug 2008 19:33:16 -0700 (PDT), and consisted of 58.8% of the entire rc3 patch.
Early distributions which picked it up
OpenWrt became the first distribution to pick up ath9k and contribute to it.
Visit the ath9k contribution graphs. You can help keep this up to date if you like. If interested contact the ath9k driver maintainers.