diff --git a/drivers/net/wireless/rt2x00/rt2800.h b/drivers/net/wireless/rt2x00/rt2800.h
index c69a7d71f4cad3cf2b6f1a90b19d1512f6d849e7..4778620347c491003fc3ff3fd02550e61d597c19 100644
--- a/drivers/net/wireless/rt2x00/rt2800.h
+++ b/drivers/net/wireless/rt2x00/rt2800.h
@@ -664,6 +664,9 @@
 
 /*
  * LED_CFG: LED control
+ * ON_PERIOD: LED active time (ms) during TX (only used for LED mode 1)
+ * OFF_PERIOD: LED inactive time (ms) during TX (only used for LED mode 1)
+ * SLOW_BLINK_PERIOD: LED blink interval in seconds (only used for LED mode 2)
  * color LED's:
  *   0: off
  *   1: blinking upon TX2