1692fbb89SNeilBrownWhat: /sys/bus/platform/devices/*twl4030-usb/vbus 2692fbb89SNeilBrownDescription: 3692fbb89SNeilBrown Read-only status reporting if VBUS (approx 5V) 4692fbb89SNeilBrown is being supplied by the USB bus. 5692fbb89SNeilBrown 6692fbb89SNeilBrown Possible values: "on", "off". 7692fbb89SNeilBrown 8692fbb89SNeilBrown Changes are notified via select/poll. 9