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Serial Port networking

Let me first say I know the parallel ports on both computers work and the
kernel is configured right because I can use my zip drive though them.

Ok, the story so far:
I descided to try and use PLIP for this (since I have a parallel port
null-modem cable) and I'm getting a strange error.  When I do:
insmod plip

I get:
init_module: Device or resource busy

and in /var/log/messages:
plip: parport0 has no IRQ.
plip: no devices registered

Now this is odd because it's happening on _both_ systems.  Next I rebooted both
systems so I could check the BIOS settings and what do I find, both systems
use IRQ 7 for the parallel port.  So the message in the logfile is wrong.

following the PLIP MINI-HOWTO I try this
insmod plip irq=7
and I get this:
plip.o: invalid parameter parm_irq

Now I have to ask why that flag in the HOWTO if it does not exist?

So can anyone figure out what's going on?  Any ideas?


Frank J. Ramsay
fjr at

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