Re: [SLUG] interrupts

From: Robert Snyder (robertsnyder@gmail.com)
Date: Sat Mar 31 2007 - 12:01:19 EST


On 3/31/07, Eben King <eben01@verizon.net> wrote:
>
> On Sat, 31 Mar 2007, Robert Snyder wrote:
>
> > On 3/30/07, Eben King <eben01@verizon.net> wrote:
> >>
> >> Anyhow, I'm thinking about getting a card that needs its own interrupt.
> >> Is there a way to change these assignments? Are they chosen by PCI
> slot?
> >
> > No they are chosen by there plug and play information that gets read by
> the
> > bios.
>
> I've told the BIOS "Yes, I have a PnP-capable OS". Does it therefore
> leave
> the devices unallocated, and let Linux handle them?
>
> > So in theory assuming you have a quality card going into the machinesn
> the
> > board is in complete complaince with the at least the orginal 1.0a which
> > was released in 1994 you should be fine. Nothing should have to be done
> > by your part.
> >
> > Now if your not happy with this, most bioses will allow you to turn off
> pnp
> > and manually assing irq to your devices.
>
> Normally, I'd agree with you. But this HOWTO said this card would fail to
> work unless it had its own IRQ. I'll see what PnP assigns it before I
> begin
> manually tweaking I guess.

Part of the 1994 1.0a spec states that it must list it irq requirments as in
if he needs to have it own irq by it self then it should relay that
information in the identifier and pnp should give it one as long as one is
available. Otherwise just do it by hand.

--
> -eben   QebWenE01R@vTerYizUonI.nOetP   royalty.mine.nu:81
>
> My parents went to a planet where the inhabitants have no
> bilateral symmetry, and all I got was this lousy F-shirt.
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