Messages in this thread | | | Date | Tue, 30 May 2006 13:31:57 +0100 | From | James Courtier-Dutton <> | Subject | Re: IO APIC IRQ assignment |
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Keith Chew wrote: > > We asked the manufacturers if they can do a physical modication for > us, but unfortunately this is not possible. The engineer did mention > that under Windows XP in "IO APIC" mode, it is possible to assign > different IRQs to the USB and BTTV. > > Is this possible in Linux? We have tried enabling IO APIC in the > kernel, but the IRQs are still shared. > > Please advise if it is even possible in Linux to achieve what we want. >
You could try enabling "Bus Options" -> [*] Message Signaled Interrupts (MSI and MSI-X)
or in .config CONFIG_PCI_MSI=y
It only works for PCI devices.
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