diff --git a/include/media/adv7842.h b/include/media/adv7842.h
index 24fed119..a4851bf 100644
--- a/include/media/adv7842.h
+++ b/include/media/adv7842.h
@@ -225,4 +225,8 @@
  * deinterlacer. */
 #define ADV7842_CMD_RAM_TEST _IO('V', BASE_VIDIOC_PRIVATE)
 
+#define ADV7842_EDID_PORT_A   0
+#define ADV7842_EDID_PORT_B   1
+#define ADV7842_EDID_PORT_VGA 2
+
 #endif