Hi, I'm sorry to bother you! Does it need to implement irq_set_type method in the ioapic_chip(arch/x86/kernel/apic/io_apic.c) structure?
Recently, I developed a device driver based on x86. The device uses a falling edge interrupt trigger mode, so I have to set the trigger mode in the request_irq function, but found that it can not be set successfully, it turn out to be that the irq_set_type method is not be implemented in the ioapic_chip structure, that is to say, for APIC interrupt controller, can not set the trigger mode. So I would like to consult with you for two questions: 1. Does it need to implement irq_set_type method in the ioapic_chip structure? 2. if no need to implement it, how can device driver set the trigger mode of APIC interrupt controller pin? Thank you! Carl -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
