rho@maccs.dcss.mcmaster.ca (Raymond Ho) (12/15/89)
Hello, I'm using an very old version of IBM Xenix (version 2.00). With the OS, it only came with 2 tty device drivers, tty00 and tty01, which support the 2 serial ports (com1 and com2) of any IBM AT. Since my machine have 4 ports (com1 to com4) and they do not share the same interrupt request line, therefore it should be possible to use 4 ports at the same time using Xenix. (the ports have been tested and they worked using PC-MOS and LanLink) The problem is that I do not have anything beyond tty00 and tty01. Is there any sources to get tty02 and so on? tty00, tty01 and tty02, etc. should be exactly the same except the access address is different, shouldn't they? Or is there any way I can get the source code for tty00 and have it modified and recompiled to tty02? Thanx for the help. Ray