--- zzzz-none-000/linux-3.10.107/arch/alpha/include/uapi/asm/ioctls.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/alpha/include/uapi/asm/ioctls.h	2021-02-04 17:41:59.000000000 +0000
@@ -90,6 +90,8 @@
 #define TIOCSBRK	0x5427  /* BSD compatibility */
 #define TIOCCBRK	0x5428  /* BSD compatibility */
 #define TIOCGSID	0x5429  /* Return the session ID of FD */
+#define TIOCGRS485	_IOR('T', 0x2E, struct serial_rs485)
+#define TIOCSRS485	_IOWR('T', 0x2F, struct serial_rs485)
 #define TIOCGPTN	_IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
 #define TIOCSPTLCK	_IOW('T',0x31, int)  /* Lock/unlock Pty */
 #define TIOCGDEV	_IOR('T',0x32, unsigned int) /* Get primary device node of /dev/console */