On Sat, 2007-08-25 at 08:45 -0700, Calin Culianu wrote: > Hi, > > > I'm coming from the RTAI and RTLinux world and I just learned about the great > strides you guys have made in hard RT. Anyway, I was wondering -- currently > how would one go about talking to DAQ hardware using the RT_PREEMPT patch(es)? > Will this "just work" with COMEDI? What happens when a userspace hard rt app > calls into a kernel device driver in the simple case of an inb() or outb() > instruction? PREEMPT_RT doesn't change the way that users call into drivers .. The users perspective of things is just same as regular linux .. Daniel - 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