The new Atheros driver for Linux being worked on, ath5k, is based upon the MadWiFi driver but integrates OpenHAL, which is an open-source HAL derived from the Atheros driver found in OpenBSD. Fortunately, all legal matters have been cleared up. The "central regulatory domain agent" will allow the driver to be completely open-source without any binary blobs, but at the same time to comply with all wireless communication laws depending upon the user's location. Once the ath5k reaches a stable status it will hopefully be included upstream with the Linux kernel. More information is available at MadWiFi.org.
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