usb_gadget_vbus_draw9
Constrain controller's vbus power usage
Usage
int usb_gadget_vbus_draw(struct usb_gadget * gadget, unsigned mA);
Arguments
gadget
The device whose VBUS usage is being described
mA
How much current to draw, in milliAmperes. This should be twice the value listed in the configuration descriptor bMaxPower field.
Overview
This call is used by gadget drivers during SET_CONFIGURATION calls, reporting how much power the device may consume. For example, this could affect how quickly batteries are recharged.
Returns zero on success, else negative errno.
Releases
5 releases since Debian 4.0 (Etch); the text changed 4 times.