--- zzzz-none-000/linux-5.4.213/include/uapi/linux/sockios.h	2022-09-15 10:04:56.000000000 +0000
+++ alder-5690pro-762/linux-5.4.213/include/uapi/linux/sockios.h	2024-08-14 09:02:10.000000000 +0000
@@ -153,6 +153,10 @@
 #define SIOCSHWTSTAMP	0x89b0		/* set and get config		*/
 #define SIOCGHWTSTAMP	0x89b1		/* get config			*/
 
+/* applicaton mark. only implemented in CONFIG_AVM_SK_TC_INDEX kernels */
+#define SIOCSET_TC_INDEX	0x89d0	/* set tc_index for socket */
+#define SIOCGET_TC_INDEX	0x89d1	/* get tc_index for socket */
+
 /* Device private ioctl calls */
 
 /*