1 files changed, 6 insertions, 1 deletions

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 7ab4ff6159a2..19f1e412a0f0 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -595,7 +595,12 @@ enum ieee80211_key_flags {
  * @flags: key flags, see &enum ieee80211_key_flags.
  * @keyidx: the key index (0-3)
  * @keylen: key material length
- * @key: key material
+ * @key: key material. For ALG_TKIP the key is encoded as a 256-bit (32 byte)
+ *      data block:
+ *      - Temporal Encryption Key (128 bits)
+ *      - Temporal Authenticator Tx MIC Key (64 bits)
+ *      - Temporal Authenticator Rx MIC Key (64 bits)
+ *
  */
 struct ieee80211_key_conf {
         enum ieee80211_key_alg alg;