On Tuesday, 18 September 2007 15:57, linux-os (Dick Johnson) wrote: > > On Tue, 18 Sep 2007 [EMAIL PROTECTED] wrote: > > > > > I have a CAN PCI card installed on my Ubuntu box. > > I understand that PCI interrupts should be level rather than edge > > triggered. > > > > The output of cat /proc/interrupts is :- > > > > CPU0 > > 0: 1614601 IO-APIC-edge timer > > 1: 164 IO-APIC-edge i8042 > > 8: 3 IO-APIC-edge rtc > > 9: 1 IO-APIC-level acpi > > 12: 0 IO-APIC-edge CAN-ACx-PCI_01 > > 14: 65786 IO-APIC-edge ide0 > > 169: 3220 IO-APIC-level eth0, [EMAIL PROTECTED]:0000:00:02.0 > > 177: 46459 IO-APIC-level eth1 > > 209: 0 IO-APIC-level uhci_hcd:usb3, eth2 > > 217: 2 IO-APIC-level uhci_hcd:usb1, ehci_hcd:usb4 > > 225: 697 IO-APIC-level uhci_hcd:usb2 > > NMI: 0 > > LOC: 1614399 > > ERR: 0 > > MIS: 0 > > > > You see that irq 12 CAN-ACx-PCI_01 is edge triggered. > > Is there any way of forcing the BIOS to see the interrupt as a > > level-triggered one? > > It's done in the driver. IRQ12 can be shared, so the driver > needs to request the IRQ as a shared interrupt.
Hm, edge-triggered interrupts cannot be shared, AFAIK. Greetings, Rafael - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
