vjs@rhyolite.SGI.COM (Vernon Schryver) (07/20/88)
Microport says that the asy driver in V/386 does not support RTS/CTS flow control. Experiments with a break-out box support that statement. How do you use a Trailblazer or other high speed async device without 'hardware' flow control? Obviously, XON/XOFF is not so hot when you have binary data, so I didn't bother to see if that works. Experiments with a break-out box suggest that when more than one process opens /dev/tty00, the <<first>> close(2) drops DTR & RTS. Did I get it wrong? Isn't this a bug? Microport says that DOS programs under Merge which want to use the COM ports run just fine with 'a=com1'. I've found that input locks up under load, and that output either garbles or drops characters. What am I doing wrong? Vernon Schryver vjs@sgi.com