Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!bloom-beacon!mit-eddie!ll-xn!ames!ncar!boulder!sunybcs!bingvaxu!leah!itsgw!steinmetz!uunet!ateng!chip From: chip@ateng.ateng.com (Chip Salzenberg) Newsgroups: comp.unix.xenix Subject: Re: COM3 with Xenix 2.2.3 Summary: edit /usr/sys/io/sioconf.c Message-ID: <1988Oct18.163642.18705@ateng.ateng.com> Date: 18 Oct 88 20:36:41 GMT References: <1113@lakesys.UUCP> Organization: A T Engineering, Tampa, FL Lines: 18 According to jamesd@lakesys.UUCP (James Dicke): >I recently received Xenix 2.2.3 for my 286. I have a problem though. >I wanted to use 3 phone modems with the system but later found out >that Xenix does not support COM3. [...] No problem (if you have the C compiler). Just edit (if necessary) and recompile the file "/usr/sys/io/sioconf.c". This file contains the I/O addresses and interrupt vectors for the recognized COMx devices. You'll just need to add another IBM_BOARD entry. BTW, I happen to know about this because I had to strip mine to the *bone*; one of the recognized boards lives at the same I/O address as some custom hardware we made, and our hardware doesn't respond well to the serial driver. :-) -- Chip Salzenberg or A T Engineering Me? Speak for my company? Surely you jest! Beware of programmers carrying screwdrivers.