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I would be very surprised if the camera modules put out anything different than the standard image sensor interfaces such as SPI, MIPI, and SLVS. Anything else would require extra circuitry that is too big. Then it just becomes a case of figuring out the control for the lens module.

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I'm actually surprised that nobody tried to poke into those lines yet and built something similar to https://hackaday.com/2021/07/05/how-to-drive-smartphone-scre... but for the camera.

Actually, since that project above links to a iPhone 4 screen as an example, I'd perhaps err into probing for MIPI signals on an iPhone 6S camera first, perhaps using sth like https://hackaday.com/2018/11/29/mipi-csi-2-implementation-in...?

This post is fascinating, btw: https://www.circuitvalley.com/2020/01/spi-mipi-bridge-fpga-v...

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