centos man page for config_ep_by_speed

CONFIG_EP_BY_SPEED(9)					      Kernel Mode Gadget API					     CONFIG_EP_BY_SPEED(9)

NAME
       config_ep_by_speed - configures the given endpoint according to gadget speed.

SYNOPSIS
       int config_ep_by_speed(struct usb_gadget * g, struct usb_function * f, struct usb_ep * _ep);

ARGUMENTS
       g
	   pointer to the gadget

       f
	   usb function

       _ep
	   the endpoint to configure

RETURN
       error code, 0 on success

       This function chooses the right descriptors for a given endpoint according to gadget speed and saves it in the endpoint desc field. If the
       endpoint already has a descriptor assigned to it - overwrites it with currently corresponding descriptor. The endpoint maxpacket field is
       updated according to the chosen descriptor.

NOTE
       the supplied function should hold all the descriptors for supported speeds

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

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						     CONFIG_EP_BY_SPEED(9)