| 摘要 |
A communication controller for an electronic device comprises a hub controller; an internal port for connecting to an I/O interface of the electronic device, external ports for connection to other electronic devices, a switching circuit for connecting a device at any port as a host, with slave devices at other ports. The switching circuit can switch between: a first state connecting the electronic device as host with other electronic devices connected as slave devices, a second state with a first other electronic device at a first external port as host and the electronic device and a second other electronic device as a slave devices, and a third state with the second other electronic device at a second external port as host and the electronic device and the first other electronic device as a slave devices. The controller has a control input for selecting between states. |
