1USB_GADGET_VBUS_DRAW(9)     Kernel Mode Gadget API     USB_GADGET_VBUS_DRAW(9)
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NAME

6       usb_gadget_vbus_draw - constrain controller's VBUS power usage
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SYNOPSIS

9       int usb_gadget_vbus_draw(struct usb_gadget * gadget, unsigned mA);
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ARGUMENTS

12       gadget
13           The device whose VBUS usage is being described
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15       mA
16           How much current to draw, in milliAmperes. This should be twice the
17           value listed in the configuration descriptor bMaxPower field.
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DESCRIPTION

20       This call is used by gadget drivers during SET_CONFIGURATION calls,
21       reporting how much power the device may consume. For example, this
22       could affect how quickly batteries are recharged.
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24       Returns zero on success, else negative errno.
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AUTHOR

27       David Brownell <dbrownell@users.sourceforge.net>
28           Author.
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31Kernel Hackers Manual 3.10         June 2019           USB_GADGET_VBUS_DRAW(9)
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