Hey @Jinhong_Park ,
Welcome to the Hailo Community!
No we currently do not have official ROS package but our community have developed some things to work with ROS ( we know its possibile there are a lot of projects using it specially in our last HAILO hackathon )
You can check them out :
I can also say from my experience in the hackathon that for detection data , we found that when i implemented a socket-based communication layer between Hailo and ROS2.