On Mon, 20 Feb 2006, Patrick Mochel wrote: > > And if the computer can wake up in response to USB events, then obviously > > the USB controller _is_ receiving some power. > > True, and I apologize if I misunderstood your initial question. By "up", I > thought you meant fully powered and functional. No; in the context of this thread I merely meant suspend-power was present. Pavel had said that a machine which supplies any USB power at all during swsusp is broken. I was trying to show this isn't so. > But yes, the USB ports may receive enough power to recognize a wakeup plug > event, but it does ultimately depend on the platform and what they choose > to implement. > > On x86 platforms, ther is no definitive answer. The ACPI spec mentions it > (section A.2.5), but does not require it. Windows might require that > feature, and if they do, that will make it more common on x86 platforms.. We can but hope... :-) Alan Stern
