diff --git a/drivers/extcon/extcon.c b/drivers/extcon/extcon.c
index 00ad8b637749..12f9ae2aac11 100644
--- a/drivers/extcon/extcon.c
+++ b/drivers/extcon/extcon.c
@@ -200,6 +200,10 @@ static const struct __extcon_info {
  * @chg_propval:	the array of charger connector properties
  * @jack_propval:	the array of jack connector properties
  * @disp_propval:	the array of display connector properties
+ * @usb_bits:		the bit array of the USB connector property capabilities
+ * @chg_bits:		the bit array of the charger connector property capabilities
+ * @jack_bits:		the bit array of the jack connector property capabilities
+ * @disp_bits:		the bit array of the display connector property capabilities
  */
 struct extcon_cable {
 	struct extcon_dev *edev;