DataLine has a different behavior on Linux and Windows. I do not know, it it a bug or feature... may be documentation is not a full?
So, steps to reproduce: 1. Create and open data line and start() on it. 2. Write data to line in a separate thread. 3. Stop line with a stop() method but do not stop thread from (2). On Windows: Thread that writes data to data line will fill line's buffer and then blocks (sleeps) when buffer reaches full. On Linux: Thread that writes data to line will spin around method write and eat CPU, because stopped line can't be written and write method returns 0 (no bytes written). This happens before line's buffer reaches full (available() > 0). Of course workaround present, but this behavior looks strange...
