talker_idle
priv->talker_state = talker_idle;
priv->talker_state = talker_idle;
priv->talker_state = talker_idle;
priv->talker_state != talker_idle) {
priv->talker_state = talker_idle;
priv->talker_state = talker_idle;
priv->talker_state = talker_idle;