1 files changed, 7 insertions, 9 deletions

diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index 18979cfb6d66..fe50912585f8 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -132,8 +132,9 @@ struct usb_ep_ops {
  * @maxpacket:The maximum packet size used on this endpoint.  The initial
  *      value can sometimes be reduced (hardware allowing), according to
  *      the endpoint descriptor used to configure the endpoint.
- * @driver_data:for use by the gadget driver.  all other fields are
- *      read-only to gadget drivers.
+ * @driver_data:for use by the gadget driver.
+ * @desc: endpoint descriptor.  This pointer is set before the endpoint is
+ *      enabled and remains valid until the endpoint is disabled.
  *
  * the bus controller driver lists all the general purpose endpoints in
  * gadget->ep_list.  the control endpoint (gadget->ep0) is not in that list,
@@ -146,6 +147,7 @@ struct usb_ep {
         const struct usb_ep_ops *ops;
         struct list_head        ep_list;
         unsigned                maxpacket:16;
+        const struct usb_endpoint_descriptor    *desc;
 };
 
 /*-------------------------------------------------------------------------*/
@@ -154,11 +156,8 @@ struct usb_ep {
  * usb_ep_enable - configure endpoint, making it usable
  * @ep:the endpoint being configured.  may not be the endpoint named "ep0".
  *      drivers discover endpoints through the ep_list of a usb_gadget.
- * @desc:descriptor for desired behavior.  caller guarantees this pointer
- *      remains valid until the endpoint is disabled; the data byte order
- *      is little-endian (usb-standard).
  *
- * when configurations are set, or when interface settings change, the driver
+ * When configurations are set, or when interface settings change, the driver
  * will enable or disable the relevant endpoints.  while it is enabled, an
  * endpoint may be used for i/o until the driver receives a disconnect() from
  * the host or until the endpoint is disabled.
@@ -173,10 +172,9 @@ struct usb_ep {
  *
  * returns zero, or a negative error code.
  */
-static inline int usb_ep_enable(struct usb_ep *ep,
-                                const struct usb_endpoint_descriptor *desc)
+static inline int usb_ep_enable(struct usb_ep *ep)
 {
-        return ep->ops->enable(ep, desc);
+        return ep->ops->enable(ep, ep->desc);
 }
 
 /**