Don't quote me on this, but dosen't RME support Linux. They have free drivers and a link to commercial drivers? If memory serves was it Terratac or Turtle Beach also? I'm sorry if this sends you on a wild goose chase. I was partnered in a company that died before it was born. The idea was to build Linux DAWs but my partner (the Linux guy) decided to get into sattelite communications. So I only heard Linux stuff second hand. We still drink together now and then hehe.