Messages in this thread | | | Subject | Re: cardbus/pcmcia/pci bridge problems? | Date | Tue, 21 May 2002 20:52:16 +0100 (BST) | From | Alan Cox <> |
| |
> >The $PIR table in the BIOS provided no useful information on what IRQ > >to use, or we didn't know the IRQ router concerned to set it up. > > alan: let me check what you're saying: despite the fact that lspci -vv > shows the relevant information, there is still a problem? > > the problem is either in the BIOS or its an issue with the kernel not > knowing which IRQ router to use when setting up the interrupt? sorry > to be repetitive, but i'm just trying to check that i fully understand > this.
There are two stages to IRQ routing
1. Knowing how INTA/B/C/D on the slot are wired to the INTA-D lines on the PCI bus (its not 1-1) 2. Knowing how to drive the PCI irq routing hardware to route a line to an ISA IRQ or to work out which it already goes to
- 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/
| |