Merge "Camera: Document expected error codes for start face detect." into jb-dev
diff --git a/include/system/camera.h b/include/system/camera.h
index b8389b1..e4cacc5 100644
--- a/include/system/camera.h
+++ b/include/system/camera.h
@@ -137,7 +137,8 @@
* KEY_FOCUS_AREAS and KEY_METERING_AREAS have no effect.
*
* arg1 is the face detection type. It can be CAMERA_FACE_DETECTION_HW or
- * CAMERA_FACE_DETECTION_SW.
+ * CAMERA_FACE_DETECTION_SW. If the type of face detection requested is not
+ * supported, the HAL must return BAD_VALUE.
*/
CAMERA_CMD_START_FACE_DETECTION = 6,