Dario Greggio wrote: > By the way, to Olin et al.: when you say "saturate the bandwitdth i.e. > with an audio device", youo mean *that* controller - that is, if the > PC has 3-4 controllers (that I guess to match the USB couples of > ports you find on the mainboards), one can be overloaded but the > others not? That's right, if each "controller" is truly a separate bus and not weasel wording when they really implemented a hub. I think on most motherboards there are combinations of independent controllers and ports that are on the same bus by being implemented as a hub from one of the true controllers. You'd have to consult the motherboard documentation to figure out which ports are really separate from which other ports. It is very unlikely that all are separate from each other. ******************************************************************** Embed Inc, Littleton Massachusetts, http://www.embedinc.com/products (978) 742-9014. Gold level PIC consultants since 2000. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist