Trying to think logically about this so that I can generate a model of what
is going on.
If I can use the modem with no network card in the box, then that seems a
good test that at some level everything is OK.
But if the modem goes away when I add the network card, then that seems to
indicate that the presence of the network card somehow conflicts with the
modem.
What else do I know? Well, I know that the modem card is on IRQ 10
regardless of whether the network card is present.
I also know that the network card is on IRQ 5.
So I'm wondering, is there any way to get a device-by-device listing of
what's occupying the various IRQs? (One hypothesis being that something
else was sitting on IRQ 5 and moved to IRQ 10 when the network card
appeared and occupied IRQ 5. I know that the PCI bus is not supposed to
allow two devices to occupy the same IRQ, but I'm grasping at straws.)
FWIW I have the following line in /etc/rc.d/rc.local:
setserial /dev/ttyS4 port 0xec00 uart 16550A irq 10 ^fourport
Does this look reasonable? If I use auto-irq instead of setting it
explicitly to IRQ 10, setserial does report that 10 is reported back by the
port, so explicitly setting it to 10 looks like it should be OK, although I
suppose I could always experiment and do an auto-irq probe at boot time.
You'll notice that I'm still not prepared (yet) to believe that this is a
WinModem; I just can't fathom how it could ever have worked if it were a
WinModem.
And of course, the manufacturer says I have to go to Micron for support,
and Micron says it supports only the OS that was on it the time at which
the box was sold. They do confirm that this is not a WinModem -- if we
believe them (actually, though, I've found Micron support to be very good
in the past, that's the principal reason I bought from them again this
time).
Doc Evans
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D.R. Evans N7DR / G4AMJ [EMAIL PROTECTED]
"Palindor Chronicles" information and extracts:
http://www.sff.net/people/N7DR/drevans.htp
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