(Resending as plain text, as I sent it originally as HTML and got rejected by ML security policies) Hi Laurent, I see that usually a sensor is powered up on attempting a VIDIOC_STREAMON at the capture endpoint of the pipeline, in which the sensor is linked. Now, what I don't understand quite well is, the Lens driver is a separate subdevice, BUT it's obviously not linked to the sensor, nor the pipeline. How would the lens driver know when to power up? Regards, Sergio -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html