luckfox-pico-sdk/sysdrv/source/kernel/Documentation/ABI/testing/sysfs-platform-twl4030-usb
2023-08-08 20:36:47 +08:00

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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.