Your computer doesn't care how many modems are installed, as long as each
has a slot, an IRQ, and some IO ports. So all you need to do is ...
1. Plug it into the motherboard.
2. Configure it -- this may involve jumpers on the modem board itself or a
software package (I'm assuming it's old enough that it isn't PnP). Setting
it to IRQ 3 and Port 0x02e8 (the settings for /dev/ttyS3) should be fine, as
long as you aren't already using /dev/ttyS1 for anything (check in
/proc/interrupts).
3. Boot up Linux and test it with setserial ("setserial /dev/ttyS3"). If it
finds the UART type, you're set. You shouldn't need to set the dev with
setserial -- it is already set up correctly for a card on (excuse the
expression) COM4.
4. Change /dev/modem as you described.
If you can't use IRQ 3, you can choose a free interrupt and use setserial to
set S3 to use it. "setserial /dev/ttyS3 irq 11" should serve (use the actual
IRQ number you select, of course). "man setserial" describes the options
pretty well, I think.
At 01:08 PM 1/30/99 -0500, Koyote wrote [with deletions]:
>This modem is a 28800 v.34, 16550 UART modem old enough that it can't
>be a winmodem...
>
>I have one open isa slot and the question is:
>
> How do I set up a second modem in the box?
>
> Now, I figure that I put the card in and set it for ttyS3 (?) and
>try to find an open interrupt. Then I run
>
>setserial /dev/ttyS3 (not sure which arguments I need here)
>rm -f /dev/modem
>ln -s /dev/ttyS3 /dev/modem
>and I'm good to go...
>
>Can I use ttyS3?
------------------------------------"Never tell me the odds!"---
Ray Olszewski -- Han Solo
762 Garland Drive
Palo Alto, CA 94303-3603
650.321.3561 voice 650.322.1209 fax [EMAIL PROTECTED]
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