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Path: euryale.cc.adfa.oz.au!newshost.anu.edu.au!harbinger.cc.monash.edu.au!nntp.coast.net!news-res.gsl.net!news.gsl.net!news.mathworks.com!newsfeed.internetmci.com!news1.erols.com!newsmaster@erols.com From: Ken Bigelow <kbigelow@www.play-hookey.com> Newsgroups: comp.unix.bsd.freebsd.misc Subject: Re: Modem at COM3: can't find it! Date: Tue, 18 Jun 1996 07:53:51 -0700 Organization: Erols Internet Services Lines: 49 Message-ID: <31C6C2FF.26FB@www.play-hookey.com> References: <4q4bho$7ht@netnews.upenn.edu> <4q6227$qc0@panix.com> NNTP-Posting-Host: kenjb05.play-hookey.com Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Mailer: Mozilla 2.02 (Win16; I) Barry Masterson wrote: > > Mike Berry (berrym@red.seas.upenn.edu) wrote: > : BSD gurus, > > : I've got an internal modem on COM3; I can get to it via > : MS-Kermit if I boot MS-DOS; but can't seem to access it via > : /dev/cuaa2, or any other /dev/cuaa* (using the nifty user-ppp > : package) > > : Has anyone had an experience like this? > > : Thanks for any suggestions. > > I was in the same situation at one time. As I understand it, your pc > really only has two com ports, 3 & 4 under dos are not real. FreeBSD > only recognizes sio0 & sio1 (com 1 & 2). Not true! MeSsy-DOS recognizes four specific port addresses for serial ports in order: 0x3F8 0x2F8 0x3E8 0x2E8 However, MacroSquish in their (?)wisdom still left only the two IRQ lines specifically allocated to COM ports. Modern serial cards typically let you use IRQ 5, and some add IRQ 2 to the possibilities as well. FreeBSD lets you configure all four (use the -c option at the boot: prompt, then type V or visual at the config> prompt). The serial ports are near the bottom of the expanded list. > > You'll have to move your modem to sio1 (com2), and most likely > disable com2 on your controller card, as well as setting any modem > jumpers/switches that apply to com ports. As long as both Kermit and FreeBSD can agree on where and how to find your modem and its IRQ, they will both work. > > Provided your setup is not any complicated, getting FreeBSD to > recognize your modem is a simple process. > NB: If you have recompiled your kernel and removed some of the SIO entries, you'll have to go back and put them back in again. If you deleted them with the -c option, use the same option to retrieve them from the list of deleted devices. I hope this helps! Ken