On Sat, 14 Apr 2012, Andiry Xu wrote: > I've created the corresponding patch for xHCI, most codes and the > description are copied from your patch for ehci-hcd. Seems remote wakeup > works fine, but I don't know how to trigger the race case. So I sent it > out as RFC. The patch looks okay to me. To trigger the race, add an ssleep(2) call (or something similar) to the end of xhci_bus_suspend. Plug in a SuperSpeed hub, and attach some other SuperSpeed device to the hub. Then start a system suspend. During the elay caused by the ssleep call, unplug the device from the hub. That should cause the hub to generate a remote wakeup request, and if your patch works correctly then the wakeup request will cause the system suspend to be aborted. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
