cfg80211: Add documentation for antenna ops

The last patch with the same title was for mac80211 ops, accidentally.

Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 49a7c53a48ca..6b2af7aeddd3 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1154,6 +1154,13 @@ struct cfg80211_pmksa {
  * @mgmt_frame_register: Notify driver that a management frame type was
  *      registered. Note that this callback may not sleep, and cannot run
  *      concurrently with itself.
+ *
+ * @set_antenna: Set antenna configuration (tx_ant, rx_ant) on the device.
+ *      Parameters are bitmaps of allowed antennas to use for TX/RX. Drivers may
+ *      reject TX/RX mask combinations they cannot support by returning -EINVAL
+ *      (also see nl80211.h @NL80211_ATTR_WIPHY_ANTENNA_TX).
+ *
+ * @get_antenna: Get current antenna configuration from device (tx_ant, rx_ant).
  */
 struct cfg80211_ops {
         int     (*suspend)(struct wiphy *wiphy);