1 files changed, 3 insertions, 0 deletions

diff --git a/include/linux/usb.h b/include/linux/usb.h
index b4ccce6d0982..e22f4b386605 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -102,6 +102,7 @@ enum usb_interface_condition {
  *      number from the USB core by calling usb_register_dev().
  * @condition: binding state of the interface: not bound, binding
  *      (in probe()), bound to a driver, or unbinding (in disconnect())
+ * @is_active: flag set when the interface is bound and not suspended.
  * @dev: driver model's view of this device
  * @class_dev: driver model's class view of this device.
  *
@@ -142,6 +143,8 @@ struct usb_interface {
         int minor;                      /* minor number this interface is
                                          * bound to */
         enum usb_interface_condition condition;         /* state of binding */
+        unsigned is_active:1;           /* the interface is not suspended */
+
         struct device dev;              /* interface specific device info */
         struct class_device *class_dev;
 };