Re: Another possible device (was: Re: OT: Questions about (buying and) using a laptop docking station)
On Tue, 24 Mar 2020 08:32:27 -0400
rhkramer@gmail.com wrote:
> * because the device is a USB hub, maybe the laptop could be
> connected to one of the USB 3.0 ports
USB hubs are not peer-peer like the old Ethernet hubs. USB is a (quite
complex) master-submaster-slave protocol with each device negotiating
for speed and bandwidth with the one 'above'. The electronics of a USB
hub shares out the bandwidth it is offered to its slave ports and must
talk to its master through the input port/cable, in this case the C
socket. The (sub-)master in a PC must connect to the hub and its slaves
through the designated input cable, it cannot talk to other slaves
while plugged into one of the slave ports.
--
Joe
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