1USB_GADGET_VBUS_CONN(9) Kernel Mode Gadget API USB_GADGET_VBUS_CONN(9)
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6 usb_gadget_vbus_connect - Notify controller that VBUS is powered
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9 int usb_gadget_vbus_connect(struct usb_gadget * gadget);
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12 gadget
13 The device which now has VBUS power.
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16 can sleep
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19 This call is used by a driver for an external transceiver (or GPIO)
20 that detects a VBUS power session starting. Common responses include
21 resuming the controller, activating the D+ (or D-) pullup to let the
22 host detect that a USB device is attached, and starting to draw power
23 (8mA or possibly more, especially after SET_CONFIGURATION).
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25 Returns zero on success, else negative errno.
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28 David Brownell <dbrownell@users.sourceforge.net>
29 Author.
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32Kernel Hackers Manual 2.6. June 2019 USB_GADGET_VBUS_CONN(9)