Sam Leffler, maintainer of the Atheros hardware abstraction layer (HAL), has released the source under an ISC license. Previously, this piece of the MadWifi driver for Atheros wireless chipsets was only available in binary form. "In his announcement, Sam states: Coincident with the release of this code I have concluded my agreement with Atheros whereby I had access to information about their devices. This means that in the future all fixes, updates for new chips, etc. will need to be a community effort. Atheros states the Linux platform will be the reference public code base so folks wanting to add support for other platforms will have to scrape the information from there."