Hi Hans, I've recently run into an issue when porting a sensor driver to the control framework. A userspace application using that driver using VIDIOC_G_EXT_CTRLS to retrieve the value of a bunch of controls in a single call. Those controls don't belong to the same class, and the application started failing. What's the rationale behind forbidding that ? -- 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