[NTLUG:Discuss] 3com/usr modem setup

[Randall Gibson]

You basically have to try each one untill it work (Thats what I did) I
eventuall ended up with the following serial config for 2 ext. serial ports
(Palm / UPS) and internal modem : 

/dev/ttyS0 uart 16550 port 0x3F8 irq 11
#/dev/ttyS1 uart 16450 port 0x2F8 irq 3
/dev/ttyS2 uart 16550 port 0x3E8 irq 4
/dev/ttyS3 uart 16550 port 0x2E8 irq 3

That what i use in my /etc/serial.conf file. Using Debian 2.2 system.

I cant remember what tools I used to figure this out, been a long time
since I did it. I did use that howto that I mentioned though. Hope that
helps you out some.

	Randall Gibson

On Tue, 12 Dec 2000 08:59:43 "Rauschuber, Chris" wrote:
> Thanks, Randall.
> So, if the Windows and Linux serial ports don't necessarily match up, and
> USR doesn't tell me which port it should use, how do I know which one to
> 'setserial' on?  Or, does it matter which one I use?  
> Then, if I get that, how do I now that the I/O address from dmesg is the
> right one?  
> Maybe I'm just missing something really important, but it seems like the
> How-tos I've read leave out a lot of things like that.
> 
> Thanks again for your help,
> Chris
> 
> From: Randall Gibson [mailto:wabbit at tvec.net]
> 
> >  Windows uses COM4, so I would think that
> > Linux
> > would use /dev/ttyS3.  
> 
> Sometimes they match up like that, but not always. 
> 
> > Can anyone either give me some tips or point me towards a good how-to?
> > 
> 
> http://www.linuxdoc.org/HOWTO/HOWTO-INDEX/howtos.html
> 
> There is a modem how-to there. 
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