linux-kernel - Re: [PATCH V3] VIA IRQ quirk behaviour change

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Date:	Tue, 12 Sep 2006 23:38:35 +0200
From:	Stian Jordet <liste@...det.net>
To:	Sergio Monteiro Basto <sergio@...giomb.no-ip.org>
Cc:	Alan Cox <alan@...rguk.ukuu.org.uk>, Daniel Drake <dsd@...too.org>,
	akpm@...l.org, torvalds@...l.org, jeff@...zik.org, greg@...ah.com,
	cw@...f.org, bjorn.helgaas@...com, linux-kernel@...r.kernel.org,
	harmon@....edu, len.brown@...el.com, vsu@...linux.ru
Subject: Re: [PATCH V3] VIA IRQ quirk behaviour change

On tir, 2006-09-12 at 13:37 +0100, Sergio Monteiro Basto wrote:
> Ok, as a quick answer, you have a very primitive VIA SMP board, which
> make me remember my old laptop. 
> I maintain what a had write in previous emails about this system. 
> Seeing the configuration of irqs on windows, USB are in 9, so could be a
> clue.
> If I had your board, I'll try not quirk USB (cause quirk put USB in 11)
> and make USB interrupts work as IO-APIC-edge.
> 9:       nnnn       nnnn   IO-APIC-edge  uhci_hcd:usb1, uhci_hcd:usb2,
> uhci_hcd:usb3

The point is, that even when I do not quirk (just insert return at the
top of the quirk-function), usb still uses irq 11 (as I wrote here:
http://lkml.org/lkml/2006/9/6/49 ), but won't work. And acpi (on
interrupt 9) gets an interrupt storm, and gets disabled.

But if I somehow got usb using irq 9, all my problems might vanish...

-Stian

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