centos man page for usb_gadget_connect

USB_GADGET_CONNECT(9)					      Kernel Mode Gadget API					     USB_GADGET_CONNECT(9)

NAME
       usb_gadget_connect - software-controlled connect to USB host

SYNOPSIS
       int usb_gadget_connect(struct usb_gadget * gadget);

ARGUMENTS
       gadget
	   the peripheral being connected

DESCRIPTION
       Enables the D+ (or potentially D-) pullup. The host will start enumerating this gadget when the pullup is active and a VBUS session is
       active (the link is powered). This pullup is always enabled unless usb_gadget_disconnect has been used to disable it.

       Returns zero on success, else negative errno.

AUTHOR
       David Brownell <dbrownell@users.sourceforge.net>
	   Author.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						     USB_GADGET_CONNECT(9)