Hi Frank, Thanks for the quick and interesting reply! I'm out of the office for the next couple of days, but will take a closer look at it once I get back later this week. Regards, Simon -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html