Herman Bruyninckx wrote:
>
> On Fri, 15 Jun 2001, Wayne E. Van Loon Sr. wrote:
>
> > Ken:
> > IMHO, nothing off topic about your question. In my experience, there are
> > 4 interrupts available to the PCI bus in PCs. If you have 5 or more PCI
> > slots, then at least two slots have to share the same interrupt.
> >
> Deos this mean that you have to include code in _any_ device driver
> you write that checks whether the interrupt was really for that device
> drive? And that every interrupt on, let's say, interrupt 4 wakes up
> the interrupt handlers of all the devices that got that interrupt
> number assigned?
>
Herman:
I think I sent you my rtl process / driver for the bt 878 and that is the way
that driver works. I have 4 ea. bt878 devices in my systems and some of my
devices always share the same interrupt. In my driver / rtl process, I check
to see which device caused the interrupt. It may be that two devices will
have caused the same interrupt by the time that the handler runs and the
driver / rtl process will want to handle both on the same interrupt.
At least that is the way that I did it.
Wayne
> Herman
>
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