Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

[firefly-linux-kernel-4.4.55.git] / include / linux / usb_gadget.h

diff --git a/include/linux/usb_gadget.h b/include/linux/usb_gadget.h
index ff81117eb733f772aea4fd33ca8e2e2267f88503..1d78870ed8af5e465d15ce85b190a81b1bf5d405 100644 (file)
--- a/include/linux/usb_gadget.h
+++ b/include/linux/usb_gadget.h
@@ -801,7 +801,9 @@ struct usb_gadget_driver {
  * Call this in your gadget driver's module initialization function,
  * to tell the underlying usb controller driver about your driver.
  * The driver's bind() function will be called to bind it to a
- * gadget.  This function must be called in a context that can sleep.
+ * gadget before this registration call returns.  It's expected that
+ * the bind() functions will be in init sections.
+ * This function must be called in a context that can sleep.
  */
 int usb_gadget_register_driver (struct usb_gadget_driver *driver);
 
@@ -814,7 +816,8 @@ int usb_gadget_register_driver (struct usb_gadget_driver *driver);
  * going away.  If the controller is connected to a USB host,
  * it will first disconnect().  The driver is also requested
  * to unbind() and clean up any device state, before this procedure
- * finally returns.
+ * finally returns.  It's expected that the unbind() functions
+ * will in in exit sections, so may not be linked in some kernels.
  * This function must be called in a context that can sleep.
  */
 int usb_gadget_unregister_driver (struct usb_gadget_driver *driver);