diff --git a/api/i_mini_servo_module.hpp b/api/i_mini_servo_module.hpp
index a06cd10..4d7d06b 100644
--- a/api/i_mini_servo_module.hpp
+++ b/api/i_mini_servo_module.hpp
@@ -58,26 +58,26 @@ class I_MiniServoModule {
 #pragma pack()
 
  public:
-  virtual int32_t enable(u8 enable)                     = 0;
-  virtual int32_t stop(u8 stop_type)                    = 0;
-  virtual int32_t position_calibrate(s32 calibrate_pos) = 0;
+  // virtual int32_t enable(u8 enable)                     = 0;
+  // virtual int32_t stop(u8 stop_type)                    = 0;
+  // virtual int32_t position_calibrate(s32 calibrate_pos) = 0;
 
-  virtual int32_t rotate(s32 speed, s32 torque, s32 run_time, action_cb_status_t status_cb)     = 0;
-  virtual int32_t move_to(s32 pos, s32 speed, s32 torque, action_cb_status_t status_cb)         = 0;
-  virtual int32_t move_by(s32 pos, s32 speed, s32 torque, action_cb_status_t status_cb)         = 0;
-  virtual int32_t run_with_torque(s32 torque, s32 run_time, action_cb_status_t status_cb)       = 0;
-  virtual int32_t move_by_nolimit(s32 pos, s32 speed, s32 torque, action_cb_status_t status_cb) = 0;
+  // virtual int32_t rotate(s32 speed, s32 torque, s32 run_time, action_cb_status_t status_cb)     = 0;
+  // virtual int32_t move_to(s32 pos, s32 speed, s32 torque, action_cb_status_t status_cb)         = 0;
+  // virtual int32_t move_by(s32 pos, s32 speed, s32 torque, action_cb_status_t status_cb)         = 0;
+  // virtual int32_t run_with_torque(s32 torque, s32 run_time, action_cb_status_t status_cb)       = 0;
+  // virtual int32_t move_by_nolimit(s32 pos, s32 speed, s32 torque, action_cb_status_t status_cb) = 0;
 
-  virtual int32_t move_forward(s32 torque)  = 0;
-  virtual int32_t move_backward(s32 torque) = 0;
+  // virtual int32_t move_forward(s32 torque)  = 0;
+  // virtual int32_t move_backward(s32 torque) = 0;
 
-  virtual int32_t read_version(version_t& version)                    = 0;
-  virtual int32_t read_status(status_t& status)                       = 0;
-  virtual int32_t read_detailed_status(detailed_status_t& debug_info) = 0;
+  // virtual int32_t read_version(version_t& version)                    = 0;
+  // virtual int32_t read_status(status_t& status)                       = 0;
+  // virtual int32_t read_detailed_status(detailed_status_t& debug_info) = 0;
 
-  virtual int32_t set_basic_param(basic_param_t& param) = 0;
+  // virtual int32_t set_basic_param(basic_param_t& param) = 0;
 
-  virtual int32_t get_basic_param(basic_param_t& param) = 0;
+  // virtual int32_t get_basic_param(basic_param_t& param) = 0;
 
   virtual ~I_MiniServoModule() {}
 };