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-rw-r--r--include/linux/serial.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/serial.h b/include/linux/serial.h
index ef914061511e..1ebc694a6d52 100644
--- a/include/linux/serial.h
+++ b/include/linux/serial.h
@@ -77,7 +77,8 @@ struct serial_struct {
#define PORT_16654 11
#define PORT_16850 12
#define PORT_RSA 13 /* RSA-DV II/S card */
-#define PORT_MAX 13
+#define PORT_U6_16550A 14
+#define PORT_MAX 14
#define SERIAL_IO_PORT 0
#define SERIAL_IO_HUB6 1