Messages in this thread |  | | Subject | Re: PCI riser cards and PCI irq routing, etc | From | Krzysztof Halasa <> | Date | Wed, 21 Feb 2007 20:54:50 +0100 |
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Udo van den Heuvel <udovdh@xs4all.nl> writes:
> Is the situation, with default DN setting of 19 as displayed below, > `normal` w.r.t. interrupts? > I mean: Both the DVB card with DN19 and the Unichrome Pro video adapter > have the same irq although they are on different busses.
It's normal (and consistent with EPIA-M). The first UHCI USB (#0) could get it, too (but it may be connected differently with IO-APIC, I haven't checked).
> How can I find out what INT_A/B/C/D line is mapped to what irq?
That "INT_A/B/C/D" stuff depends on the point of view. In the BIOS setup you can select some IRQs (which Linux could change anyway) but it's a chipset-centric view (not very useful here).
Every PCI card have INT_A/B/C/D signals and they are (may be) remapped on the riser card and on the motherboard. -- Krzysztof Halasa - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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