Hi Sergio, On Wednesday 25 August 2010 22:15:36 Aguirre, Sergio wrote: > 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? At the moment a userspace application needs to keep the lens subdev open to power-up the lens controller. -- Regards, Laurent Pinchart -- 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