From aeccb853a54faa44b16a840f76cfccec88a8aa11 Mon Sep 17 00:00:00 2001
From: Martine Lenders <m.lenders@fu-berlin.de>
Date: Mon, 20 Mar 2017 11:59:10 +0100
Subject: [PATCH] doc: fix doc hierarchy

---
 drivers/include/mtd.h    | 3 ++-
 sys/fs/constfs/constfs.c | 2 +-
 sys/fs/devfs/devfs.c     | 2 +-
 sys/fs/doc.txt           | 3 ++-
 sys/include/fs/constfs.h | 4 ++--
 sys/include/fs/devfs.h   | 4 ++--
 6 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/drivers/include/mtd.h b/drivers/include/mtd.h
index 2d6c5c8026..4835c08531 100644
--- a/drivers/include/mtd.h
+++ b/drivers/include/mtd.h
@@ -7,7 +7,8 @@
  */
 
 /**
- * @defgroup    mtd Memory Technology Device
+ * @defgroup    drivers_mtd Memory Technology Device
+ * @ingroup     drivers_storage
  * @{
  * @brief       Low level Memory Technology Device interface
  *
diff --git a/sys/fs/constfs/constfs.c b/sys/fs/constfs/constfs.c
index 9b29a08a19..cca9a7b9dd 100644
--- a/sys/fs/constfs/constfs.c
+++ b/sys/fs/constfs/constfs.c
@@ -7,7 +7,7 @@
  */
 
 /**
- * @ingroup     fs_constfs
+ * @ingroup     sys_fs_constfs
  * @{
  *
  * @file
diff --git a/sys/fs/devfs/devfs.c b/sys/fs/devfs/devfs.c
index 07dc70b826..a2309e3406 100644
--- a/sys/fs/devfs/devfs.c
+++ b/sys/fs/devfs/devfs.c
@@ -7,7 +7,7 @@
  */
 
 /**
- * @ingroup     fs_devfs
+ * @ingroup     sys_fs_devfs
  * @{
  *
  * @file
diff --git a/sys/fs/doc.txt b/sys/fs/doc.txt
index f20b48aac5..f01f71dd91 100644
--- a/sys/fs/doc.txt
+++ b/sys/fs/doc.txt
@@ -7,6 +7,7 @@
  */
 
 /**
- * @defgroup    fs File systems
+ * @defgroup    sys_fs File systems
+ * @ingroup     sys
  * @brief       File system libraries
  */
diff --git a/sys/include/fs/constfs.h b/sys/include/fs/constfs.h
index a0286e6dea..60fd6e1de0 100644
--- a/sys/include/fs/constfs.h
+++ b/sys/include/fs/constfs.h
@@ -7,8 +7,8 @@
  */
 
 /**
- * @defgroup  fs_constfs ConstFS static file system
- * @ingroup   fs
+ * @defgroup  sys_fs_constfs ConstFS static file system
+ * @ingroup   sys_fs
  * @brief     Constant file system resident in arrays
  *
  * This is an example of how to implement a simple file system driver for the
diff --git a/sys/include/fs/devfs.h b/sys/include/fs/devfs.h
index f5c4260edd..48f4460d9f 100644
--- a/sys/include/fs/devfs.h
+++ b/sys/include/fs/devfs.h
@@ -7,8 +7,8 @@
  */
 
 /**
- * @defgroup  fs_devfs DevFS device file system
- * @ingroup   fs
+ * @defgroup  sys_fs_devfs DevFS device file system
+ * @ingroup   sys_fs
  * @brief     Dynamic device file system
  *
  * This file system implementation allows devices to register file names for