On Monday 08 February 2010 18:48:40 Alexey Shuvaev wrote: > Hans, do you have any ideas? > I think this is because the file handle for USB access was not closed, when the device was detached. Can you check that? Same happens if you cu -l /dev/cuaU0 and don't kill cu upon device removal. It's not USB's fault :-) --HPS