+ * @NL80211_CMD_REG_BEACON_HINT: indicates to userspace that an AP beacon
+ * has been found while world roaming thus enabling active scan or
+ * any mode of operation that initiates TX (beacons) on a channel
+ * where we would not have been able to do either before. As an example
+ * if you are world roaming (regulatory domain set to world or if your
+ * driver is using a custom world roaming regulatory domain) and while
+ * doing a passive scan on the 5 GHz band you find an AP there (if not
+ * on a DFS channel) you will now be able to actively scan for that AP
+ * or use AP mode on your card on that same channel. Note that this will
+ * never be used for channels 1-11 on the 2 GHz band as they are always
+ * enabled world wide. This beacon hint is only sent if your device had
+ * either disabled active scanning or beaconing on a channel. We send to
+ * userspace the wiphy on which we removed a restriction from
+ * (%NL80211_ATTR_WIPHY) and the channel on which this occurred
+ * before (%NL80211_ATTR_FREQ_BEFORE) and after (%NL80211_ATTR_FREQ_AFTER)
+ * the beacon hint was processed.