Am Freitag, den 05.06.2020, 10:09 +0000 schrieb Joakim Tjernlund: > I can see that when I open the tty, a USB read is performed and then echoed back. > Should an open really do that? Yes. The tty interface does not pass read(2) down to the driver. > If so, an flag to open(2), telling it to drop the input buffer would be really handy. That actually looks like an unavoidable race condition to me. How would you tell the difference between old data and newly arriving data? Regards Oliver
