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SubjectRe: what is pci=biosirq


On Mon, 2 Apr 2001, Petr Vandrovec wrote:

> It looks more like that Acer misimplemented PCI_IRQPIN register - if it
> is legacy IDE interface using ports 1F0-1F7/170-177, with IRQs 14 & 15,
> it should report zero as IRQ pin. What 'lspci -vx -s 0:f.0' says?
> Last four bytes it prints should read 'YY 00 XX XX' - where YY is IRQ
> number assigned by BIOS - either hardwired to zero in chip, or just left
> alone by BIOS (00 or FF) and next 00 is IRQ pin number - 0 = none, 1 =
> A,
> 2 = B ... Intel IDE interfaces returns 00 00 here, VIA returns FF 00,
> and
> I have no hardware with an additional IDE around.
>
> Petr Vandrovec
> vandrove@vc.cvut.cz
>
Here is the output of lspci -vx -s 0:f.0

00:0f.0 IDE interface: Acer Laboratories Inc. [ALi] M5229 IDE (rev c1)
(prog-if 8a [Master SecP PriP])
Flags: bus master, medium devsel, latency 32
I/O ports at b000 [size=16]
00: b9 10 29 52 05 00 80 02 c1 8a 01 01 00 20 00 00
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 01 b0 00 00 00 00 00 00 00 00 00 00 00 00 00 00
30: 00 00 00 00 00 00 00 00 00 00 00 00 00 01 02 04

I'm not sure what to make of it. At this time I am unable to
append="pci=biosirq" as I don't use lilo. Is there a way to put this
arguement directly into the kernel image?

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