| control_loop_for_gripper(port_handler, ...)
 |  | 
| pre_process(robot)
 |  | 
| read_encoder(port_handler, packet_handler, ...)
 |  | 
| read_operation_mode(port_handler, ...)
 |  | 
| send_current(port_handler, packet_handler, ...)
 |  | 
| send_goal_position(port_handler, ...)
 |  | 
| send_operation_mode(port_handler, ...)
 |  | 
| send_torque_enable(port_handler, ...)
 |  |