Hi, I am trying to understand how the subdev function are triggered when I use v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner,t) on tm600-video. How am i able to link the callback from the tuner_xc2028 function? Please help me to understand or directly me to any documentation that I can read up? thanks, Hock. -- 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