diff --git a/README.md b/README.md
index fecc2ee6..eb9754a1 100644
--- a/README.md
+++ b/README.md
@@ -29,4 +29,32 @@ What PDF datasheets are we missing
 - Switch controller RTL9302B, RTL9302C, RTL930D datasheet
 - POE controller RTL8239 datasheet
 - POE controller RTL8239 host command guide
-- Transceiver RTL8224 
+- Transceiver RTL8224 (maybe RTL8284 in the GPL source drops is a older version)
+
+Transceiver IDs according to the GPL source drops
+
+#define PHY_MODEL_ID_RTL8208G           (0x08)
+#define PHY_MODEL_ID_RTL8208D_EXT       (0x08)
+#define PHY_MODEL_ID_RTL8208L           (0x08)
+#define PHY_MODEL_ID_RTL8218B_INT       (0x24) /* For RTL8380M internal phy*/
+#define PHY_MODEL_ID_RTL8208L_INT       (0x24) /* For RTL8330/RTL8332 internal phy */
+#define PHY_MODEL_ID_RTL8218B_EXT       (0x18)
+#define PHY_MODEL_ID_RTL8218D           (0x18)
+#define PHY_MODEL_ID_RTL8218FB          (0x18)
+#define PHY_MODEL_ID_RTL8214FC          (0x18)
+#define PHY_MODEL_ID_RTL8218E           (0x18)
+#define PHY_MODEL_ID_RTL8214C           (0x14)
+#define PHY_MODEL_ID_RTL8214B           (0x14)
+#define PHY_MODEL_ID_RTL8212B           (0x14)
+#define PHY_MODEL_ID_RTL8214FB          (0x14)
+#define PHY_MODEL_ID_RTL8295            (0x2B)
+#define PHY_MODEL_ID_RTL8295R           (0x2B)
+#define PHY_MODEL_ID_RTL8214QF          (0x2B)
+#define PHY_MODEL_ID_RTL8224QF          (0x2B)
+#define PHY_MODEL_ID_RTL8226            (0x03)
+#define PHY_MODEL_ID_RTL8226B           (0x04)
+#define PHY_MODEL_ID_RTL826X            (0x2F)
+#define PHY_MODEL_ID_RTL8264B           (0x01)
+#define PHY_MODEL_ID_RTL8224            (0x2D)
+#define PHY_MODEL_ID_RTL8284            (0x2D)
+#define PHY_MODEL_ID_RTL8211FS          (0x11)