Re: [LAU] irq sharing

From: Paul Davis <paul@email-addr-hidden>
Date: Tue Aug 24 2010 - 15:58:11 EEST

On Tue, Aug 24, 2010 at 8:10 AM, David Santamauro
<david.santamauro@email-addr-hidden> wrote:
>
> Hi,
>
> I've decided to get back to diagnosing why my delta 1010 inputs have a
> background noise and stumbled across a few websites indicating that the
> problem could be irq sharing.
>
> My delta shares irq 20 with usb devices:
>
> $ cat /proc/interrupts |grep ICE
>  20:    1325915    1326971    1335010    1348560    1337725
> 1330100    1336582    1346152   IO-APIC-fasteoi   ehci_hcd:usb1,
> uhci_hcd:usb2, ICE1712
>
> Is there a way to forcibly assign ICE1712 to another IRQ? I just want
> to test the theory.

it depends on your motherboard and your BIOS. on most laptops, there
is no way. since have a 1010, its not a laptop, so you'll have to
check the BIOS to see if it offers control over interrupt assignments.
mine does not, for example.
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Received on Tue Aug 24 20:15:02 2010

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