Why PTPCamera spins up high CPU usage may just be a bug in certain system software versions, or with a combination of certain devices and system software, and while it likely won’t happen in High Sierra or macOS Sierra, it is reliably reproduced in Mac OS X El Capitan 10.11.6 with an iPhone X and many earlier versions of Mac OS simply by connecting an unlocked iPhone to the Mac running those. PTP sort of works I guess? The apps recognize the phone, but do not display any of the files.
I can see the DCIM folder, the photos in it, and there is no.NOMEDIA file that I can find. Apple’s Mac OS X does support PTP, so you can use PTP mode to transfer photos from an Android phone or tablet to a Mac over a.
In this mode, your Android device will work with digital camera applications that support PTP but not MTP. It is further standardized for USB by the USB Implementers Forum as the still image capture device. Picture Transfer Protocol (PTP) is a protocol developed by the International Imaging Industry Association to allow the transfer of images from digital cameras to computers and other peripheral devices without the need of additional device drivers.The protocol has been standardized as ISO 15740.
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