On Thursday, November 03, 2011, Linus Torvalds wrote: > On Thu, Nov 3, 2011 at 3:58 AM, Rafael J. Wysocki <rjw@xxxxxxx> wrote: > > > > The PCI subsystem may still be the source of it, except that I'm not > > aware of any mechanism in there that may resume the USB controllers > > only without touching the other devices. Are the USB controllers > > related to each other somehow PCI-wise (I mean, are they functions of the > > same device or something like this)? > > No, they're not even the same manufacturer - Intel doesn't do USB3 in > their chipsets yet afaik, so a lot of vendors who decide they need to > have a USB3 port add a separate chip for it. > > The ehci ports are on the same device, though.So the fact that > plugging in somethign into one of them wakes up the other I don't find > too surprising. It's the xhci connection that is so odd. Yes, it is. I'm kind of inclined to think that Alan might be right when he said that user space could do something silly ... -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
