diff --git a/drivers/firewire/fw-device-cdev.h b/drivers/firewire/fw-device-cdev.h
index b934272913e1..ddbae43ca1a4 100644
--- a/drivers/firewire/fw-device-cdev.h
+++ b/drivers/firewire/fw-device-cdev.h
@@ -37,6 +37,14 @@
 #define TCODE_STREAM_DATA		10
 #define TCODE_LOCK_RESPONSE		11
 
+#define TCODE_LOCK_MASK_SWAP		0x11
+#define TCODE_LOCK_COMPARE_SWAP		0x12
+#define TCODE_LOCK_FETCH_ADD		0x13
+#define TCODE_LOCK_LITTLE_ADD		0x14
+#define TCODE_LOCK_BOUNDED_ADD		0x15
+#define TCODE_LOCK_WRAP_ADD		0x16
+#define TCODE_LOCK_VENDOR_DEPENDENT	0x17
+
 #define RCODE_COMPLETE			0x0
 #define RCODE_CONFLICT_ERROR		0x4
 #define RCODE_DATA_ERROR		0x5