On Mon, 06 Dec 2010 11:37:21 +0000, Dave Howorth <dhoworth@mrc-lmb.cam.ac.uk> wrote:
I think this answers Philipp's puzzlement.
In Part yes :)
Intel expects that measurement devices will contain enough intelligence to enable measurement collection to be asynchronous. Or at least they will be interfaced via such devices.
I think they didn't really think about these cases, but you could also be right in that the USB creators (Intel, Microsoft and others) really did assume that the timing critical part would be implemented in the device. And using the serial port for Time signal receivers wasn't in the spec of the serial interface either, at least for those devices that just strobed DTS to deliver a timing interrupt. It just happened to work :) Philipp -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org