What: /sys/bus/platform/devices/*twl4030-usb/vbus
Description:
Read-only status reporting if VBUS (approx 5V)
is being supplied by the USB bus.
Possible values: "on", "off".
Changes are notified via select/poll.
[ Dauer der Verarbeitung: 0.11 Sekunden
(vorverarbeitet)
]
