Subject: Re: [linux-audio-user] Just bought a Delta 1010LT, now what..?
From: Florian Schmidt (mista.tapas_AT_gmx.net)
Date: Sun Sep 26 2004 - 17:23:25 EEST
On Sun, 26 Sep 2004 09:47:47 -0400
Joe Hartley <jh_AT_brainiac.com> wrote:
> I respectfully disagree; the IRQ is very important to the system!
> There's a ton of detail why at
> http://www.pcguide.com/ref/mbsys/res/irq/func.htm
>
> It's worth noting that many motherboards have a way of assigning IRQs
> to particular slots in the BIOS. That might be what you need to get
> IRQ 9 assigned to the sound card. If the 1010 is at 5, which is often
> used for the parallel port, just about every other peripheral will be
> ahead of it, taking precedence.
My bios is especially weird. It assigns irq 5 to my soundcard no
matter what slot it is in. But if i insert an scsi adapter it then gets
irq 5 no matter what slot and the soundcard gets irq3 no matter what
slot. So it seems to assign irq's based on the device class or
something. And since 3 and 5 are rather low priority irq's i kinda
dislike it.
http://roht.informatik.uni-halle.de/~ladischc/pic_priorities.html
might help if you use an XT-PIC [dunno if it's safe to use on recent
kernels, etc..]. Just tried it and it didn't do anything bad to my
system [seemingly].
http://roht.informatik.uni-halle.de/~ladischc/ioapic_priorities.html
for APIC systems [don't work with 2.6.x kernels according to author]
flo
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