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Forum: PCMCIA Multifunction Card Issues
Re: Sad 3CCFEM556B - modem does not work (Micha Meier)
Re: None Strange combination of symptoms (David Hinds)
Date: 2000, Jun 07
From: Micha Meier micha

I've given it another try, using seyon instead of minicom,
which turns out to be a much better tool to diagnose modem
problems. I've noticed that in Windows the card installs
with ioport=0x3f8, irq=10, COM1 is on 0x238 instead. I've
tried the same on Linux without any luck. What I found
strange: if syslog says 

kernel: tty03 at 0x02e8 (irq = 10) is a 16550A

and I call

setserial /dev/ttyS3 irq 10

then seyon cannot find any modem at all, with other irqs
it does not complain but the modem does not work either.
I've also looked into the BIOS settings but did not find
anything special, just floppy, sound, parallel port.
My Tecra has a DVD-player and an MPEG-II decoder instead
of an internal modem, but they do not occur in the BIOS
settings.
When I use setserial to set the irq to 0, then seyon
immediately echoes what I type and the modem answers,
so it really looks like an interrupt problem?!

--Micha

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