Disabling IRQ 10 for Atheros card

[Kevin Old]

On 8/16/05, Kevin Old <kevinold at gmail.com> wrote:
> Hello everyone,
> 
> From lspci I have a: Atheros Communications, Inc. AR5212 802.11abg NIC
> (rev 01) wireless card.
> 
> I've had success with getting it to work, with the madwifi drivers,
> but lately I've noticed that it sometimes works after boot up and
> sometimes doesn't.  After looking in /var/log/messages, I see this:
> 
> Aug 16 09:00:04 localhost kernel: ehci_hcd 0000:00:1d.7: USB 2.0
> initialized, EHCI 1.00, driver 10 Dec 2004
> Aug 16 09:00:04 localhost kernel: hub 1-0:1.0: USB hub found
> Aug 16 09:00:04 localhost kernel: hub 1-0:1.0: 6 ports detected
> Aug 16 09:00:04 localhost kernel: USB Universal Host Controller
> Interface driver v2.2
> Aug 16 09:00:04 localhost kernel: irq 10: nobody cared!
[snip]
> 
> It doesn't say anything about using acpi=off on boot up or anything
> like that.  I'm stumped.  1 out of 5 times when I boot up it's like
> nothing ever happend and my wireless card work perfectly.  I haven't
> upgraded anything and am running kernel-2.6.12-1.1398_FC4.
> 
> Any ideas what I can do to correct this?

Well, for the archives, I did come up with a temporary "fix".  If I
turn off my wireless card during boot up there are no IRQ conflicts. 
After it's booted and the card is turned on there aren't any
conflicts.  It just works.  I'm open to suggestions on what I can do
to "fix" the IRQ's so it allows me to boot with the card on, but for
now, I'm happy with the solution.

Kevin
-- 
Kevin Old
kevinold at gmail.com