I have a Google Pixel with Android v7.1.1. With AutoTools, I can read the adaptive brightness level (it's screen_brightness_auto_adj). It will range anywhere from 0.0 (slider all the way to the left) to 100.0 (slider all the way to the right). But if I try doing a custom setting to set it, I get the "Can't change setting on this device. You cannot change private secure settings." I've done the ADB command to grant AutoTools the WRITE_SECURE_SETTINGS permission, but still can't get it to work. It would be great to have a way to set this in AutoTools.