Orinoco IRQ problem?

Allen McIntosh mcintosh at research.telcordia.com
Thu Feb 7 18:09:02 EST 2008


I've been having trouble getting an Orinoco wireless PCMCIA card to work 
with recent 2.6 kernels (2.6.24, among others).  To make a long story 
short (long story posted on the orinoco-users mailing list), the problem 
seems to be IRQ related.  The card connects to the access point just 
fine, but ultimately loses an interrupt and never comes up ready.  (To 
save a visit to orinoco-users, the laptops in question are an IBM T21 
and a T41.)

I can get the card to work by either
	rmmod nsc_ircc
or by enabling the infrared port in the BIOS(!).

The card is assigned IRQ3 (by yenta_socket, I guess).  The default IRQ 
for the infrared port is also IRQ3.  I have no definitive proof that the 
two facts are related.  I did get a comment from a former Orinoco 
maintainer that the Orinoco card/driver did not like to share IRQ's.

My question:  Is it possible to tell yenta_socket (or whatever module is 
assigning the IRQ) to stay away from IRQ3?  I tried google, and didn't 
get any answers that were reasonable - most referred to the old PCMCIA 
drivers.



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