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-rw-r--r--src/config/serial.h7
1 files changed, 6 insertions, 1 deletions
diff --git a/src/config/serial.h b/src/config/serial.h
index 1d7f51ef..44272d1f 100644
--- a/src/config/serial.h
+++ b/src/config/serial.h
@@ -13,7 +13,12 @@
FILE_LICENCE ( GPL2_OR_LATER );
-#define COMCONSOLE 0x3f8 /* I/O port address */
+#define COM1 0x3f8
+#define COM2 0x2f8
+#define COM3 0x3e8
+#define COM4 0x2e8
+
+#define COMCONSOLE COM1 /* I/O port address */
/* Keep settings from a previous user of the serial port (e.g. lilo or
* LinuxBIOS), ignoring COMSPEED, COMDATA, COMPARITY and COMSTOP.