diff --git a/include/drivers/usb_device.h b/include/drivers/usb_device.h
index e21e315..8fdb6ae 100644
--- a/include/drivers/usb_device.h
+++ b/include/drivers/usb_device.h
@@ -166,6 +166,8 @@
 	uint8_t *(*get_usr_desc)(uint8_t index, uint16_t *length);
 	uint8_t *(*get_config_desc)(uint16_t *length);
 	uint8_t *(*get_device_qualifier_desc)(uint16_t *length);
+	/* optional: high speed capable device operating at its other speed */
+	uint8_t *(*get_other_speed_config_desc)(uint16_t *length);
 };
 
 /* USB Device handle structure */