There is one idea that seems to model this cleanly without breaking all kinds of expectations. That is an irq with a very small data payload. In that case we wire all of the vectors up to a single irq handler that computes the payload as: payload = vector - base-vector. And then we figure out how to pass that to the handler in irqaction. To most of the system it is a single irq so it avoids breaking expectations about what an irq is. To everything else it is a little odd, and has it's own unique set of rules (which is good as well). Eric -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html