diff --git a/iflytop_xsync_protocol.h b/iflytop_xsync_protocol.h
index cff50d1..661279d 100644
--- a/iflytop_xsync_protocol.h
+++ b/iflytop_xsync_protocol.h
@@ -99,6 +99,7 @@ typedef struct {
 typedef enum {
   ktimecode_report_event         = 0,
   kxsync_work_state_report_event = 1,
+  kdevice_online_report_event    = 2,
 } iflytop_event_type_t;
 
 #define XYSNC_REG_DEVICE_INFO_START_ADD  0
@@ -146,12 +147,12 @@ typedef enum {
    * @brief
    *  REG 16(32)  STM32配置寄存器0
    */
-  kxsync_reg_stm32_obtaining_ip_mode                = XYSNC_REG_STM32_CONFIG_START_ADD + 0,
-  kxsync_reg_stm32_ip                               = XYSNC_REG_STM32_CONFIG_START_ADD + 1,
-  kxsync_reg_stm32_gw                               = XYSNC_REG_STM32_CONFIG_START_ADD + 2,
-  kxsync_reg_stm32_netmask                          = XYSNC_REG_STM32_CONFIG_START_ADD + 3,
-  kxsync_reg_stm32_config0                          = XYSNC_REG_STM32_CONFIG_START_ADD + 4,  // bit0: timecode report enable, bit1: camera sync report enable
-  kxsync_reg_stm32_camera_sync_signal_count         = XYSNC_REG_STM32_CONFIG_START_ADD + 5,  // 写任意数值之后清零
+  kxsync_reg_stm32_obtaining_ip_mode        = XYSNC_REG_STM32_CONFIG_START_ADD + 0,
+  kxsync_reg_stm32_ip                       = XYSNC_REG_STM32_CONFIG_START_ADD + 1,
+  kxsync_reg_stm32_gw                       = XYSNC_REG_STM32_CONFIG_START_ADD + 2,
+  kxsync_reg_stm32_netmask                  = XYSNC_REG_STM32_CONFIG_START_ADD + 3,
+  kxsync_reg_stm32_config0                  = XYSNC_REG_STM32_CONFIG_START_ADD + 4,  // bit0: timecode report enable, bit1: camera sync report enable
+  kxsync_reg_stm32_camera_sync_signal_count = XYSNC_REG_STM32_CONFIG_START_ADD + 5,  // 写任意数值之后清零
   // kxsync_reg_stm32_camera_sync_signal_report_period = XYSNC_REG_STM32_CONFIG_START_ADD + 6,  // 多少帧上报一次
 
   kxsync_reg_stm32_action0     = XYSNC_REG_STM32_CONFIG_START_ADD + 14,  // action reg
@@ -177,13 +178,15 @@ typedef enum {
   kxsync_device_type_encoder      = 3,
 } xsync_device_type_t;
 
-typedef enum { obtaining_ip_mode_type_static = 0, obtaining_ip_mode_type_dhcp = 1 } obtaining_ip_mode_t;
+typedef enum { obtaining_ip_mode_type_static = 0, obtaining_ip_mode_type_dhcp = 1, obtaining_ip_mode_type_lla = 2 } obtaining_ip_mode_t;
 static inline const char* obtaining_ip_mode_to_string(obtaining_ip_mode_t mode) {
   switch (mode) {
     case obtaining_ip_mode_type_static:
       return "static";
     case obtaining_ip_mode_type_dhcp:
       return "dhcp";
+    case obtaining_ip_mode_type_lla:
+      return "lla";
     default:
       return "unknown";
   }