2 Secondary -> Primary [ label = "ioctl_set_state()" ]
3 Primary -> Secondary [ label = "ioctl_set_state()" ]
7 Secondary -> Primary [ label = "recv state packet" ]
8 Primary -> Secondary [ label = "recv state packet" ]
9 Primary -> Unknown [ label = "connection lost" ]
10 Secondary -> Unknown [ label = "connection lost" ]
11 Unknown -> Primary [ label = "connected" ]
12 Unknown -> Secondary [ label = "connected" ]