Quote:
Originally Posted by ember1205
Yes, you can split it. And, in essence, this is what a hub actually does.
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In essence, yes, in reality, no.
Yes, USB can *address* 127 devices per port, that doesn't mean you can directly connect 127 (or 2) devices to the same data pair. There is a physical layer you have to contend with. USB is a master-slave protocol. Unlike, say, CAN that is a "bus" designed to handle everyone talking at once, there is no data collision detection/ prioritization built in to the USB physical layer. Hubs provide the required isolation between the devices so the data doesn't collide and act as the master to the connected devices, and a slave to the host.
Any cable-only splitter you find will most likely be just a power tap. To properly split a USB connection, you need a hub, and the host device needs to understand how to talk to that hub. I suspect the IC on the USB module in the center console is exactly that, a USB hub controller.