On Thu, Sep 12, 2013 at 2:51 PM, Xie Xianshan <xi...@cn.fujitsu.com> wrote: > Dear Max, > > > Does it mean an IRQ to be edge-triggered? > No, it is a level-sensitive and active-high interrupt. > This is why i tried to use qemu_irq_raise() to trigger IRQ.
Ok, back to your original question: > I`m getting the nobody cared disabling IRQ error, when i raised external > interrupts IRQ3 to the Openpic in QEMU. Your linux driver should return anything except IRQ_NONE from its ISR when it detects IRQ from your device. As I understand once you raise IRQ you don't lower it, so the driver must always return anything except IRQ_NONE. If it doesn't do so you will see the error message above. -- Thanks. -- Max
