usb_hcd_resume_root_hub - called by HCD to resume its root hub
void usb_hcd_resume_root_hub (struct usb_hcd * hcd);
hcd host controller for this root hub
The USB host controller calls this function when its root hub is suspended (with the remote wakeup feature enabled) and a remote wakeup request is received. It queues a request for khubd to resume the root hub (that is, manage its downstream ports again).