Monday, 5 February 2018

How do USB micro-B phones determine the host?


Phones typically use micro-B instead of micro-AB or mini-AB, meaning that micro-A and mini-A cables can't be connected to them. Since these cables use an additional, grounded pin to identify which device is the host on the micro-A / mini-A end, how would a phone with a micro-B receptacle determine the host? Or do phones lose the ability to act as a host by use of the micro-B port?




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