On 08/02/2017 13:36, Anton Lundin wrote:
Basically you can't connect anything else to you phones usb-port than the USB-OTG cable. You might be able to use a USB-OTG-cable which injects power but nothing else. You might be able to use a usb-hub for the power inject, but I've never seen one which can feed power to a USB-OTG connected phone. Remember USB-OTG != USB. They are two completely different modes in the usb-hardware and software in your Android device. If you simultaneously need adb access, you need to enable adb over wifi, and connect to your Android device that way. //Anton
Anton, I need a bit of help here to understand how an OTG protocol would communicate with a normal non-OTG USB device like a dive computer. I have always assumed OTG is a software upgrade to the existing USB infrastructure that allows a device to become USB bus master and actively talk to other USB devices. Now I see that there are so-called OTG adapters that allows a memory stick to be OTG-compliant. Does this mean that only OTG-compliant devices can be accessed by Android? What exactly in hardware is required to get my phone to talk to a non-OTG dive computer? I happen to have a memory stick with a micro-USB plug as well as a full-sized USB plug. If I connect it to Android with the full-sized end, the OTG detector on my phone does not register it. If I switch to the micro-USB end of the memory stick, it registers an OTG device on Android. I need to understand what the equipment ramifications are for a diver with a FTDI-nased deive computer.
Kind regards, willem _______________________________________________ subsurface mailing list [email protected] http://lists.subsurface-divelog.org/cgi-bin/mailman/listinfo/subsurface
