On Thu, 18 Oct 2007, Ed Durrant wrote:

>> Mine is sharing the IRQ without problems with:
>> 8086:2659 Intel USB UHCI Controller #2
>> 8086:266A Intel SMBus Controller
>>
>> PCI devices are *supposed* to share IRQs.
>
> Yes but SCSI cards often have issues (even PCI ones). The examples you
> give above are not SCSI adapters.

I was only listing the devices using the same IRQ as my Adaptec 29160 
card, since I assumed that part was obvious.

> By the way PnP devices are also "supposed" to be able to
share interupts
> and do under Windoze but often give issues under OS/2 and Linsux.

ISAPnP was a badly implemented disaster.  On the other hand, IRQ sharing 
is part of the PCI spec, and for the most part works fine.  Sometimes 
there are buggy drivers that don't work correctly, or a buggy System BIOS 
that didn't implement PCI quite right, or even a PCI card that doesn't do 
things right.  I'm just pointing out that it is supposed to work, and does 
for me on my Adaptec 29160, on an Intel motherboard.


 
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