Index: sources/storage/DriveWatcher.h
===================================================================
diff -u -r12e7b6dda53cf8db7707c7fa55dcf6137e7d6997 -r84c5373209a1a488c00917995f5553d442d159a4
--- sources/storage/DriveWatcher.h	(.../DriveWatcher.h)	(revision 12e7b6dda53cf8db7707c7fa55dcf6137e7d6997)
+++ sources/storage/DriveWatcher.h	(.../DriveWatcher.h)	(revision 84c5373209a1a488c00917995f5553d442d159a4)
@@ -31,9 +31,16 @@
 
 /*!
  * \brief   The DriveWatcher class
- * \details This class is to watch the USB device to be mounted if plugged in
- * or to be unmounted if user through UI requests it.
- * and will notify UI (user) on mounted and removed(No USB drive exists).
+ * \details This class is watching for the USB and SD-Card drives in Linux file system.
+ *          It has the interval of 1000 ms and will look if any device between /dev/sda1 to /dev/sdz1 exists then will mount it in /media/usb,
+ *          and does check if the SD-Card has been mounted under /media/sdcard,
+ *          but for SD-Card doesn't try to mount it and it has to be mounted prior to UI Application start
+ *          and that's because from UI Application perspective it is not a removable/hot-plug device (although physically it is).
+ *          This class works in its own thread and will send notification by emitting signals about the USB device status
+ *          which are Mounted, Unmounted, Removed
+ *          and SD-Card space conditions changes.
+ * \note :  'Removed' is when no USB device present.
+ *
  */
 class DriveWatcher : public QObject
 {