1 files changed, 3 insertions, 0 deletions
diff --git a/src/haptic.cpp b/src/haptic.cpp
index 637c6f5..90c75f7 100644
--- a/src/haptic.cpp
+++ b/src/haptic.cpp
@@ -45,6 +45,9 @@ public:
         }
         else
         {
+            /* We only support one vibrate mode for now: an on/off pulse at
+               one-second intervals. So, set a timer to go off every 2 seconds
+               that vibrates for one second. */
             ua_sensors_haptic_enable(m_sensor);
             m_tag = g_timeout_add_seconds (2, on_timeout, this);
             on_timeout (this);