On 12/31/2010 11:41 AM, Carlo Ascani wrote: Hello Carlo, You're using the old stack: old 1394 stack present.... True old 1394 stack loaded..... True old 1394 stack active..... True new 1394 stack present.... True new 1394 stack loaded..... False new 1394 stack active..... False /dev/raw1394 node present. True /dev/raw1394 permissions.. True And the reason why no one replied on the FFADO mailinglist is because it should work. The only weird thing I see is that there is a samplerate mismatch apparently. But FFADO should set it according the JACK settings. Or do you have to adjust the samplerate on the ESI manually? And did you try different FireWire cables? You don't need a real-time kernel I think since your FireWire controller sits on its own IRQ. You could try though, I can recommend the one from Tango Studio: http://tangostudio.tuxfamily.org/en/apt-repository Best, Jeremy