Is it possible to stream video from a UVC (USB Video Class) camera on an iPhone 15? If so, are there any specific hardware or software requirements to enable this functionality?
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Is it possible to stream video from a UVC (USB Video Class) camera on an iPhone 15?
Nope. External UVC devices are only supported on iPads with USB C connectors. API support is in iOS 17, the limitation is mentioned in the the "Support external cameras in your iPadOS app" presentation from WWDC 2023.
The documentation for AVCaptureDevice.DeviceType.external says "On iPad, external devices are those that conform to the UVC (USB Video Class) specification.", but does not make it clear that support is limited to iPads with USB C only.
How they are doing? https://www.febon.net/products/usb-uvc-webcam-to-lightning
They tell you on their web site. Okay, it is possible, it isn't very practical.