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Hi, David van Hoose started having problems with USB on 2.4.23-pre5. USB device and acpi were now using irq 20: host/usb-ohci.c: USB OHCI at membase 0xe081a000, IRQ 20 /proc/interrupts: 20: 1 IO-APIC-level acpi, usb-ohci Which makes the USB device not work. With -pre4 the USB device was using interrupt 9, because acpi failed to find the correct IRQ: pci_irq-0302 [18] acpi_pci_irq_derive : Unable to derive IRQ for device 00:03.0 PCI: No IRQ known for interrupt pin A of device 00:03.0 host/usb-ohci.c: USB OHCI at membase 0xe081a000, IRQ 9 Now 2.6 assigns interrupt 20 to acpi and usb-ohci just like in 2.4.23-pre5+, but the USB device works! Anyone has an idea why the interrupt sharing works with 2.6 but not with 2.4? - 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/ | ||||||||||
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