Are there any USB C ninjas out there?
Are you aware of "USB micro-B to USB C OTG cables"?
I've been tasked with making a self powered USB 2.0 Device with a Type-C receptacle. Nothing special there, C supports USB 2.0 just fine, and it doesn't even need any electronics to compensate for the two insertion directions.
But my problem is this: To connect this C Device to a micro-A/B port (as in your Android phone) there will have to be a C to micro-B cable. So far so good. But how will the phone treat the Device as a Device? In other words, will the ID pin be grounded on the micro-B side of the cable? That is the way OTG cables are set up today, although they typically have a USB A receptacle in the other end, not a USB C plug.
My suspicion is that the ID pin will be left floating and thus make the phone a Device. That makes sense if you want to use a the C to micro-B cable to charge your phone from a modern computer. That is what looks like the case in this cable:
I haven't yet come across cables which translate the CC pin logic of USB C to ID pin logic of USB micro and mini plugs. Are you aware of anything like this? Is there such a thing as an OTG cable from micro-B to Type C?