[linux-audio-dev] Status of mLAN?

What's the status of mLAN on Linux? I found a few discussions in the archives, the latest being http://eca.cx/lad/2003/12/0084.html , but nothing really conclusive. It seems that there is documentation (and even an implementation) for A/M, but nothing for Connection Management. Has anyone tried recently to get documentation? Based on http://www.yamaha.co.jp/tech/1394mLAN/english/ptt.html , it seems that documentation is available for a nominal fee, but it is more than I am willing to pay. I am considering buying a PreSonus FireStation, which does what I need at half the cost of an RME Hammerfall, and am willing to spend a considerable amount of time writing a driver, if documentation is available. Thanks for any information, Jody