Add code to collect data about auto-brightness adjustments.
Write samples of the old and new state to the binary event log whenever
the user modifies the auto-brightness adjustment. We wait a few seconds
before logging to ensure that the user is satisfied with the adjustment.
Bug: 19786916
Change-Id: I41402decd1034d0839aa0f47495bc00907ab9c08
diff --git a/services/core/java/com/android/server/EventLogTags.logtags b/services/core/java/com/android/server/EventLogTags.logtags
index abd2ca0..ef9d0c3 100644
--- a/services/core/java/com/android/server/EventLogTags.logtags
+++ b/services/core/java/com/android/server/EventLogTags.logtags
@@ -180,6 +180,11 @@
34001 device_idle_step
34002 device_idle_wake_from_idle (is_idle|1|5), (reason|3)
+# ---------------------------
+# DisplayManagerService.java
+# ---------------------------
+# Auto-brightness adjustments by the user.
+35000 auto_brightness_adj (old_adj|5),(old_lux|5),(old_brightness|5),(old_gamma|5),(new_adj|5),(new_lux|5),(new_brightness|5),(new_gamma|5)
# ---------------------------
# ConnectivityService.java