Messages in this thread | | | Date | Wed, 28 May 2003 19:45:40 -0400 | From | Jeff Garzik <> | Subject | Re: RFC Proposal to enable MSI support in Linux kernel |
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Zwane Mwaikambo wrote: > On Wed, 28 May 2003, Jeff Garzik wrote: >>A bigger question though: if platform_legacy_irq() returns zero, will >>the handler _ever_ be edge-triggered? > > > Good question, i wouldn't think so, that would collapse that section into > two lines.
Have you ever seen an edge-triggered interrupt on x86 that would fail the current platform_legacy_irq test? For what cases does that happen? The legacy interrupts on the boxes I poked at are edge triggered, but I do not know enough to say if that is a general rule.
Jeff
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