#define EXTERNAL_ENCODER_ACTION_V3_ENCODER_BLANKING_OFF 0x10
#define EXTERNAL_ENCODER_ACTION_V3_ENCODER_BLANKING 0x11
#define EXTERNAL_ENCODER_ACTION_V3_DACLOAD_DETECTION 0x12
+#define EXTERNAL_ENCODER_ACTION_V3_DDC_SETUP 0x14
// ucConfig
#define EXTERNAL_ENCODER_CONFIG_V3_DPLINKRATE_MASK 0x03