diff --git a/protocol/cmdid.cpp b/protocol/cmdid.cpp
index f35592b..562bd52 100644
--- a/protocol/cmdid.cpp
+++ b/protocol/cmdid.cpp
@@ -33,6 +33,7 @@ static cmdinfo_t table[] = {
 
     CMD_ITERM(ka8k_opt_v2_t_start_scan),
     CMD_ITERM(ka8k_opt_v2_f_start_scan),
+    CMD_ITERM(ka8k_opt_v2_barcode_start_scan),
     CMD_ITERM(ka8k_opt_v2_t_open_laster),
     CMD_ITERM(ka8k_opt_v2_t_close_laster),
     CMD_ITERM(ka8k_opt_v2_t_readVal),
diff --git a/protocol/cmdid.hpp b/protocol/cmdid.hpp
index 70cc564..8642790 100644
--- a/protocol/cmdid.hpp
+++ b/protocol/cmdid.hpp
@@ -44,6 +44,8 @@ typedef enum {
   ka8k_opt_v2_f_close_laster = 0x070e,  //() for_debug
   ka8k_opt_v2_f_readVal      = 0x070f,  //(int32_t *val0,int32_t *val1) for_debug
 
+  ka8k_opt_v2_barcode_start_scan = 0x0702,  //(int32_t lasterGain,int32_t scanGain,int32_t startpos,int32_t intervalstep)
+
   kstep_motor_enable                        = 0x0201,  //
   kstep_motor_read_pos                      = 0x020b,  //
   kstep_motor_read_enc_pos                  = 0x020c,  //