Yenta and IRQ0

David Hinds dhinds at
Tue Aug 10 12:42:40 EDT 2004

On Tue, Aug 10, 2004 at 05:30:30PM +0100, Russell King wrote:
> Is there any reason that we're not just out-right refusing to allow
> yenta to initialise if we find that we don't have the PCI interrupt
> assigned by the PCI subsystem/BIOS ?
> FWICS, we try to emulate the status change interrupt handling via
> a timer in yenta.c, but this only half-solves the issue - PCI drivers
> for cardbus cards themselves won't work with this arrangement.
> Could we instead refuse to initialise and print a (hopefully) useful
> message to prompt users to check their BIOS settings/ACPI settings?

The message is certainly a good idea.  I'm not sure that bombing out
at that point is a good idea... because in some cases the problem is
not correctable (either due to BIOS issues, or hardware design) and
you would be breaking systems that work fine for 16 bit cards.

-- Dave

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