* @tuner: the #GstTuner (a #GstElement) that owns the channel.
* @channel: the channel to tune to.
*
- * Tunes the object to the given channel.
+ * Tunes the object to the given channel, which should be one of the
+ * channels returned by gst_tuner_list_channels().
*/
void
* @tuner: the #GstTuner (a #GstElement) to set the norm on.
* @norm: the norm to use for the current channel.
*
- * Changes the video norm on this tuner to the given norm.
+ * Changes the video norm on this tuner to the given norm, which should be
+ * one of the norms returned by gst_tuner_list_norms().
*/
void