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b420015189
The old lens_shading parameter structures exist for backwards compatability, but there's a new v2 version which includes a corner_sampled flag (when the grid is sampled on cell corners rather than centrally) and a gain_format, which allows different fractional precision in the uint8_t values, and even a u4.10 16-bit format. Calls through the V4L2 interface to the ISP should use the v2 style of structure.