usb_root_hub_lost_power — called by HCD if the root hub lost Vbus power
void usb_root_hub_lost_power ( | struct usb_device * | rhdev) ; |
The USB host controller driver calls this function when its root hub
is resumed and Vbus power has been interrupted or the controller
has been reset. The routine marks rhdev
as having lost power. When
the hub driver is resumed it will take notice; if CONFIG_USB_PERSIST
is enabled then it will carry out power-session recovery, otherwise
it will disconnect all the child devices.