Aucbvax.1763 fa.unix-wizards utzoo!duke!decvax!ucbvax!Greg@NPRDC Mon Jun 15 22:41:14 1981 Re: fast tty input driver I have a DH driver that allows you to select a group of ports for "direct" I/O -- i.e., charecters do not go through ttyinput, etc. We use it to permit Unix to act as a front-end on the ARPAnet for other machines. It has been run as fast as 9600 baud, but 4800 seems more reliable. It also (with a suitable-wired connector) controls the other host's Clear-To-Send signal so that it won't get overrun. Is this sufficient?