diff --git a/include/hardware/fingerprint.h b/include/hardware/fingerprint.h
index 618ca7e..b567732 100644
--- a/include/hardware/fingerprint.h
+++ b/include/hardware/fingerprint.h
@@ -50,6 +50,7 @@
     FINGERPRINT_ERROR_NO_SPACE = 4, /* No space available to store a template */
     FINGERPRINT_ERROR_CANCELED = 5, /* The current operation can't proceed. See above. */
     FINGERPRINT_ERROR_UNABLE_TO_REMOVE = 6, /* fingerprint with given id can't be removed */
+    FINGERPRINT_ERROR_LOCKOUT = 7, /* the functionality is temporarily locked out */
     FINGERPRINT_ERROR_VENDOR_BASE = 1000 /* vendor-specific error messages start here */
 } fingerprint_error_t;
 
@@ -250,8 +251,16 @@
      */
     int (*authenticate)(struct fingerprint_device *dev, uint64_t operation_id, uint32_t gid);
 
+    /*
+     * Resets a lockout by providing a valid hardware authentication token.
+     *
+     * Function return: 0 on success
+     *                  or a negative number in case of error, generally from the errno.h set.
+     */
+    int (*reset_lockout)(struct fingerprint_device *dev, const hw_auth_token_t *hat);
+
     /* Reserved for backward binary compatibility */
-    void *reserved[4];
+    void *reserved[3];
 } fingerprint_device_t;
 
 typedef struct fingerprint_module {