Actually look at linux/Documentation/rtc.txt for a "reasonably portable" way to get very small quanta with fair regularity.
Since the original poster wanted it to be user accessible, and since it is a contended/exclusive device, he may want to make a broker daemon or something. Since nanosleep doesn't constrain the max time of the sleep, you get the same performance by setting the timer the "a good way" and then spinning on it from user space, or blocking or whatever. Confabulating the right thing to do for non-power-of-2 times is pretty trivial too. Not perfect, but trying to be all things to all people, and all that... 8-) Rob White, Casabyte, Inc. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
