doc: clarification for FAT module.

git-svn-id: https://src.develer.com/svnoss/bertos/trunk@2826 38d2e660-2303-0410-9eaa-f027e97ec537

diff --git a/bertos/fs/fat.h b/bertos/fs/fat.h
index 34b20bbac1a7e2725fd562264984857384509ae0..0dd1529f752568e36df92fedbae4a0a07cbd0853 100644 (file)
--- a/bertos/fs/fat.h
+++ b/bertos/fs/fat.h
@@ -32,6 +32,9 @@
  *
  * \brief FatFS: kfile interface for FatFS module by ChaN.
  *
+ * This driver needs some low level hardware access functions. An example implementation
+ * is provided in sd.h.
+ *
  * \version $Id$
  *
  * \author Luca Ottaviano <lottaviano@develer.com>