On Fri, 16 Jan 2009, Zhao Yakui wrote: > Hi, Alan > We do a test on the laptop based on intel ICH9 chipset. In the test > the UHCI HCD driver is not loaded in the boot phase. A low-speed USB > mouse is plugged. In such case the USB mouse is not detected. After the > boot is finished, the uhci hcd driver is loaded manually. Then USB mouse > is loaded and can work well. > Is this different with that EHCI driver is resumed before UHCI > driver? I don't understand your question. Can you rephrase it more explicitly? > Do there exist the rediscovery and re-enumberation for the low-speed > device if the EHCI driver resume is finished before the UHCI driver? I still don't understand. You said your test involved booting without uhci-hcd, then plugging in a mouse, then loading uhci-hcd manually. The test did not involve suspending or resuming. So why ask a question about EHCI driver resume? The question has nothing to do with the test. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
