Hi: thanks for you kind help :) > So your question has to do with shared interrupts, right? The kernel Originally I want to know how uhci and ehci communicate each other when I plug different speed devices. And I find the both of them share the same interrupt, so I also ask a question about irq. > will notify all registered users for an interrupt when it happens, and > it is up to the individual driver to determine if it really is their > hardware that caused the interrupt to happen. If not, it just returns > and the next irq handler for that interrupt is called. > > Does that help answer the question? Yes. > > What is the problem you are having that you are trying to resolve? > > thanks, > > greg k-h > appreciate your kind help :) vichy -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
