[parisc-linux] IOGear Firewire+USB card causes unexpected irq 2

[Max Grabert]

On 29/03/06, Chris Frost <chris at frostnet.net> wrote:
>
> When I boot a B1000 using 2.6.16-pa8 with an IOGear Firewire+USB card
> (GUF3121) the machine shows the error drivers/parisc/superio.c:308,
> "Illegal irq number(2)", after it brings up USB. This happens when the
> card is in the 66MHz 64bit slot and when it is in one of the 33MHz
> 32bit slots. (The card is 33MHz 32bit; I tried to see if different
> slots/buses might change the irq.)


FYI I'm using a similar USB/Firewire combo card in my C3000 and a
USB2.05port PCI card in my C3700 and they work fine (both cards using
EHCI / OHCI,
work since the early 2.6 days up to the lastest CVS kernel).

So it seems to be a problem with your specific type of USB controller; is it
by any chance a UHCI compatible controller? AFAIK they should work fine, but
who knows? A 'lspci -v' output would be nice, also make sure that your B1000
is using the latest PDC firmware; IIRC there were a couple of PCI related
bugs in older versions ...

Greetings,
  Max
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