The FFADO project aims to provide a free driver implemenation for FireWire (IEEE1394, iLink) based (semi-) professional audio interfaces. The focus of the project are on audio/music production rather than consumer audio. This means that, although we intend to supported all features at some point, consumer features are considered less important. The most obvious example of a consumer feature is AC3/DTS passthrough support, which is unsupported at the moment. When using ffado as a normal user you might run into permission problems with access to /dev/raw1394. To solve that issue you can add the line KERNEL=="raw1394", GROUP="disk" to /lib/udev/rules.d/65-permissions.rules and make your user a member of the disk group. This optionally depends on libdbus-c++.