[102186] in RedHat Linux List
Re: Newbie Modem Questions
daemon@ATHENA.MIT.EDU (Jan Carlson)
Tue Dec 1 19:33:26 1998
Date: Tue, 01 Dec 1998 19:25:57 -0500
From: Jan Carlson <janc@iname.com>
To: redhat-list@redhat.com
Resent-From: redhat-list@redhat.com
Reply-To: redhat-list@redhat.com
Marshall Dunlap wrote:
> From: Jan Carlson <janc@iname.com>
>
> Is the modem PCI or ISA?
> >>>>>ISA<<<<<<
> Plug and Play?
> >>>>Disabled<<<<<
> Winmodem?
> >>>>>>Nope<<<<<<<
> Does it have COM, IRQ and disable-PNP jumpers?
> >>>>>Yes and thank you for asking this. Many times having the right
> question will give us the answer.<<<<<<<<
> Do you have docs for it?
> >>>>>>>>No, but I did get some stuff off the 'net<<<<<<<<<<
> Do the docs/web site say it supports DOS, OS/2, Linux or Unix?
> >>>>>>>>>>No mention of anything but windows but as 95% of all modems are
> Hayes compatible I am hoping mine is and that this won't be an
> issue.<<<<<<<<<<
Check the man page for setserial, and run setserial to test the modem.
# man setserial
If it shows a 16550 uart at com2 irq5 you are on the way.
After installing the uucp rpm, try talking to the modem on COM2:
# cu -l /dev/cua1 See if you can send AT and get an OK back.
Type <return>~. (return tilde period) to exit cu. Or try minicom
and xminicom. I like cu because it needs no setup.
>
> Here are the standard PC serial port assignments:
> COM1 io 0x3F8 irq 4
> COM2 io 0x2F8 irq 3
> COM3 io 0x3E8 irq 4
> COM4 io 0x2E8 irq 3
> >>>>>>>>>Very handy reference material. Thanks!<<<<<<<<<<<
> aic7xxx is a scsi controler - can you switch that to 10 or 11,
> to free up irq3?
> >>>>>>>>I couldn't see any way to do this. However, as I aluded to above,
> I COULD change the IRQ on the modem via jumpers. The COM port is controled
> by a different set of jumpers so I now have COM2 and IRQ5. I haven't tried
> it yet but I wanted to respond to your questions before unpluging my
> monitor and using it for the Linux box.<<<<<<<<<<
>
> If so you could configure the modem for COM2 or COM4,
> after disabling COM2 and COM4 in the machine's BIOS.
> Right now, COM2 may be enabled - it should be disabled in the BIOS,
> unless you are using the builtin COM2 for something.
>
> >>>>>>>It was diabled in the BIOS<<<<<<<<<<<<
> >
> It is finding something at IRQ3 and4, and the io port 2f8 = com2,
> which could be the modem, or the builtin com2. Check the bios,
> and see what the modem jumpers are set for.
>
> >>>>>>>>>I think it is finding the modem on COM2 because that's what the
> jumpers are set at.<<<<<<<<<<
>
> Linuxconf can also set up uucp scripts for you...
>
> >>>>>>>>Thanks for the tip. I will check it out. The UUCP scripts didn't
> seem that complicated. I got them out of LINUX NETWORK ADMINISTRATORS
> GUIDE OLAF KIRCH, I hope I am reading it correctly. They seem almost
> TOO easy.
> >
> Thank you again. I'll let you know if it works out.
>
> md
>
> --
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--
Jan Carlson
janc@iname.com Scarborough, Ontario, Canada
Mailed with Netscape 4.5 on Red Hat Linux 5.2
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