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USB role reversal with Lightning to Type C cable
Hi,My company is an MFi licesee. We develop audio accessories. Our newest product will feature a USB Type-C receptacle and typically appear as a USB 2.0 device on it. The product interfaces iPhone/computer/other smartphone to hifi kits with stunning sound quality.Here is my question: Is it possible to implement USB Role Reversal on such a receptacle in combination with your USB-C to Lightning cable (A1702)?By this I mean have the USB-C receptacle on my device accept the USB-C plug on the A1702 (which is probably hardcoded with resistors to appear as a USB-C device itself), negotiate with an MFi chip in my product, and then switch to device role.At the same time, the default configuration of the USB-C receptacle should be to appear as a device when interfacing computers and Android units.I am searching for convenient ways to use iPhones with my product. The present solution (camera adapter + USB A to C cable) is not very user friendly.Best regards,Børge
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1.3k
Sep ’17
Lightning to USB C cable and USB C device
Hi guys,I've been tasked with making a self-powered USB 2.0 Device with a USB C receptacle. This product should work with iOS Hosts the same way as if connected through a Lightning OTG cable aka. Cable Kit.I guess the most common use for a Lightning to USB C cable would be to charge an iOS unit from a Mac or PC with USB C. Then the computer is the Host and the phone/pad is the Device. My need is to swap the Host/Device roles with the same cable.After reading up on USB C the question boils down to this: Do Lightning to USB C cables relate to the pull-up/pull-down of the CC pins on the C side when they assign Host/Device roles?Thanks,Borge-san
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Sep ’16