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The TCS3472 has a WTIME register and WEN bit that insert a low-power wait state between RGBC cycles. The register is already defined in the driver but never used. I noticed that tsl2772.c enables wait with a fixed default and no userspace control. However, I think exposing the wait time to userspace would be more useful to tune the power/responsiveness tradeoff. My plan would be to expose it via an ext_info attribute in microseconds, following the same convention as integration_time. Does that sound acceptable, or would you prefer a simpler approach with just a fixed default like tsl2772? I also plan a following patch converting the driver to devm. Thanks, Aldo