diff --git a/libc/kernel/uapi/linux/serial.h b/libc/kernel/uapi/linux/serial.h
index 300176b..494dc9a 100644
--- a/libc/kernel/uapi/linux/serial.h
+++ b/libc/kernel/uapi/linux/serial.h
@@ -71,6 +71,11 @@
 #define SERIAL_IO_HUB6 1
 #define SERIAL_IO_MEM 2
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define SERIAL_IO_MEM32 3
+#define SERIAL_IO_AU 4
+#define SERIAL_IO_TSI 5
+#define SERIAL_IO_MEM32BE 6
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define UART_CLEAR_FIFO 0x01
 #define UART_USE_FIFO 0x02
 #define UART_STARTECH 0x04