johnmc@mitaka.rice.edu (John Mellor-Crummey) (08/26/90)
OS version 3.51a For a while I had been using async_main, the communication program provided with the 3B1 along with the on board modem (at 1200 baud). I have been continually frustrated by the way it handles terminal i/o. If I log onto another Unix system using async_main and "cat" a very large file, I have a hard time interrupting the cat with a ^C to abort it. Sometimes I have had to watch text scroll by for several minutes before the ^C is noticed by the remote system. Recently, I installed kermit on my system hoping that this would work better than async_main for dialing in. Unfortunately, I have the same problem as before. Question: Is there a problem with the device driver for /dev/ph that causes it to delay sending outgoing data (my ^C) when there is incoming data? If so, has anyone written a better device driver for /dev/ph? If not, does anyone know how this sort of problem can be avoided? -- John Mellor-Crummey Center for Research on Parallel Computation johnmc@rice.edu Rice University, P.O. Box 1892 713-285-5179 Houston, TX 77251