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%SECTION0{name=LddInterruptHandling}% Interrupt Handling * simple! Write a handler: <verbatim> irqreturn_t handler(int irq, void *dev_id); </verbatim> * register it with the kernel... <verbatim> int request_irq(unsigned int irq, irq_handler_t handler, unsigned long irqflags, const char *devname, void * dev_id); </verbatim> * ...enable device to generate interrupts <verbatim> int fiddle_with_registers(); </verbatim> * and handle! (when done undo in reverse order) * But... this is not the case anymore for ARCH=powerpc! (but still for ARM) * Virtual vs. real interrupts
5.6.1. Accessing devices
1. Denx Training Topics
5.6.3. Deferring work
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