pci

rash_f · 06-30-2006, 06:26 AM

Hi,

what will be the outcome if two pci devices are trying use the same interrupt line
eg irq no = 1 , this is on linux based PC

Regards,

rash_f

timmeke · 06-30-2006, 09:21 AM

What kinds of devices?

I've seen devices use the same IRQ before, on Windows, without problems.
It may depend on the drivers they use.

See also:
http://www.gentoo.org/doc/en/article...ability-p2.xml
or Google search.

In general, IRQ sharing isn't recommended, but it is possible on modern systems.

rash_f · 06-30-2006, 11:39 PM

Thanks a Ton !!

pci devices that I was referring to are pci based network cards and pci based audio/video card.

Regards,

rash_f

timmeke · 07-03-2006, 01:43 AM

From what I read, but I'm no expert, network cards are the most sensitive to IRQ sharing.