diff --git a/demos/STM32/RT-VFS-FATFS/cfg/stm32g474re_nucleo64/vfsconf.h b/demos/STM32/RT-VFS-FATFS/cfg/stm32g474re_nucleo64/vfsconf.h
index 0dae7c97b..bf08e04e5 100644
--- a/demos/STM32/RT-VFS-FATFS/cfg/stm32g474re_nucleo64/vfsconf.h
+++ b/demos/STM32/RT-VFS-FATFS/cfg/stm32g474re_nucleo64/vfsconf.h
@@ -90,6 +90,29 @@
 
 /** @} */
 
+/*===========================================================================*/
+/**
+ * @name FatFS driver settings
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief   Number of directory nodes pre-allocated in the pool.
+ */
+#if !defined(DRV_CFG_FATFS_DIR_NODES_NUM) || defined(__DOXYGEN__)
+#define DRV_CFG_FATFS_DIR_NODES_NUM         1
+#endif
+
+/**
+ * @brief   Number of file nodes pre-allocated in the pool.
+ */
+#if !defined(DRV_CFG_FATFS_FILE_NODES_NUM) || defined(__DOXYGEN__)
+#define DRV_CFG_FATFS_FILE_NODES_NUM        2
+#endif
+
+/** @} */
+
 #endif /* VFSCONF_H */
 
 /** @} */
diff --git a/demos/STM32/RT-VFS-FATFS/cfg/stm32l4r9ai_discovery/vfsconf.h b/demos/STM32/RT-VFS-FATFS/cfg/stm32l4r9ai_discovery/vfsconf.h
index 0dae7c97b..bf08e04e5 100644
--- a/demos/STM32/RT-VFS-FATFS/cfg/stm32l4r9ai_discovery/vfsconf.h
+++ b/demos/STM32/RT-VFS-FATFS/cfg/stm32l4r9ai_discovery/vfsconf.h
@@ -90,6 +90,29 @@
 
 /** @} */
 
+/*===========================================================================*/
+/**
+ * @name FatFS driver settings
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief   Number of directory nodes pre-allocated in the pool.
+ */
+#if !defined(DRV_CFG_FATFS_DIR_NODES_NUM) || defined(__DOXYGEN__)
+#define DRV_CFG_FATFS_DIR_NODES_NUM         1
+#endif
+
+/**
+ * @brief   Number of file nodes pre-allocated in the pool.
+ */
+#if !defined(DRV_CFG_FATFS_FILE_NODES_NUM) || defined(__DOXYGEN__)
+#define DRV_CFG_FATFS_FILE_NODES_NUM        2
+#endif
+
+/** @} */
+
 #endif /* VFSCONF_H */
 
 /** @} */
diff --git a/demos/STM32/RT-VFS-FATFS/make/stm32l4r9ai_discovery.make b/demos/STM32/RT-VFS-FATFS/make/stm32l4r9ai_discovery.make
index 9b0d142b4..cba277db4 100644
--- a/demos/STM32/RT-VFS-FATFS/make/stm32l4r9ai_discovery.make
+++ b/demos/STM32/RT-VFS-FATFS/make/stm32l4r9ai_discovery.make
@@ -108,6 +108,7 @@ include $(CHIBIOS)/os/rt/rt.mk
 include $(CHIBIOS)/os/common/ports/ARMv7-M/compilers/GCC/mk/port.mk
 # VFS files (optional).
 include $(CHIBIOS)/os/vfs/vfs.mk
+include $(CHIBIOS)/os/vfs/drivers/overlay/drvoverlay.mk
 include $(CHIBIOS)/os/vfs/drivers/streams/drvstreams.mk
 include $(CHIBIOS)/os/vfs/drivers/fatfs/drvfatfs.mk
 # Auto-build files in ./source recursively.
diff --git a/os/vfs/drivers/fatfs/drvfatfs.c b/os/vfs/drivers/fatfs/drvfatfs.c
index 53a533033..c2bcf4206 100644
--- a/os/vfs/drivers/fatfs/drvfatfs.c
+++ b/os/vfs/drivers/fatfs/drvfatfs.c
@@ -30,8 +30,6 @@
 #include "vfs.h"
 #include "drvfatfs.h"
 
-#include "ff.h"
-
 /*===========================================================================*/
 /* Module local definitions.                                                 */
 /*===========================================================================*/
@@ -96,60 +94,6 @@
 /* Module local types.                                                       */
 /*===========================================================================*/
 
-/**
- * @brief   @p vfs_fatfs_driver_t virtual methods table.
- */
-struct vfs_fatfs_driver_vmt {
-  __vfs_fatfs_driver_methods
-};
-
-/**
- * @brief   Type of a structure representing a VFS FatFS driver.
- */
-typedef struct vfs_drv_streams {
-  /**
-   * @brief   Virtual Methods Table.
-   */
-  const struct vfs_fatfs_driver_vmt   *vmt;
-  __vfs_fatfs_driver_data
-} vfs_fatfs_driver_t;
-
-/**
- * @brief   @p vfs_fatfs_dir_node_t virtual methods table.
- */
-struct vfs_fatfs_dir_node_vmt {
-  __vfs_fatfs_dir_node_methods
-};
-
-/**
- * @brief   Type of a structure representing a FatFS directory VFS node.
- */
-typedef struct vfs_fatfs_dir_node {
-  /**
-   * @brief   Virtual Methods Table.
-   */
-  const struct vfs_fatfs_dir_node_vmt *vmt;
-  __vfs_fatfs_dir_node_data
-} vfs_fatfs_dir_node_t;
-
-/**
- * @brief   @p vfs_fatfs_file_node_t virtual methods table.
- */
-struct vfs_fatfs_file_node_vmt {
-  __vfs_fatfs_file_node_methods
-};
-
-/**
- * @brief   Type of a structure representing a FatFS file VFS node.
- */
-typedef struct vfs_fatfs_file_node {
-  /**
-   * @brief   Virtual Methods Table.
-   */
-  const struct vfs_fatfs_file_node_vmt *vmt;
-  __vfs_fatfs_file_node_data
-} vfs_fatfs_file_node_t;
-
 /*===========================================================================*/
 /* Module local variables.                                                   */
 /*===========================================================================*/
diff --git a/os/vfs/drivers/fatfs/drvfatfs.h b/os/vfs/drivers/fatfs/drvfatfs.h
index 2075c28b0..3d0fdd7ab 100644
--- a/os/vfs/drivers/fatfs/drvfatfs.h
+++ b/os/vfs/drivers/fatfs/drvfatfs.h
@@ -28,7 +28,7 @@
 #ifndef DRVFATFS_H
 #define DRVFATFS_H
 
-#include "vfs.h"
+#include "ff.h"
 
 /*===========================================================================*/
 /* Module constants.                                                         */
@@ -42,10 +42,123 @@
 /* Derived constants and error checks.                                       */
 /*===========================================================================*/
 
+/* Configuration options checks.*/
+#if !defined(DRV_CFG_FATFS_DIR_NODES_NUM)
+#error "DRV_CFG_FATFS_DIR_NODES_NUM not defined in vfsconf.h"
+#endif
+
+#if !defined(DRV_CFG_FATFS_FILE_NODES_NUM)
+#error "DRV_CFG_FATFS_FILE_NODES_NUM not defined in vfsconf.h"
+#endif
+
+#if DRV_CFG_FATFS_DIR_NODES_NUM < 1
+#error "invalid value for DRV_CFG_FATFS_DIR_NODES_NUM"
+#endif
+
+#if DRV_CFG_FATFS_FILE_NODES_NUM < 1
+#error "invalid value for DRV_CFG_FATFS_FILE_NODES_NUM"
+#endif
+
 /*===========================================================================*/
 /* Module data structures and types.                                         */
 /*===========================================================================*/
 
+/**
+ * @brief   @p vfs_fatfs_dir_node_t specific methods.
+ */
+#define __vfs_fatfs_dir_node_methods                                        \
+  __vfs_directory_node_methods
+
+/**
+ * @brief   @p vfs_fatfs_dir_node_t specific data.
+ */
+#define __vfs_fatfs_dir_node_data                                           \
+  __vfs_directory_node_data                                                 \
+  DIR                           dir;
+
+/**
+ * @brief   @p vfs_fatfs_dir_node_t virtual methods table.
+ */
+struct vfs_fatfs_dir_node_vmt {
+  __vfs_fatfs_dir_node_methods
+};
+
+/**
+ * @brief   Type of a structure representing a FatFS directory VFS node.
+ */
+typedef struct vfs_fatfs_dir_node {
+  /**
+   * @brief   Virtual Methods Table.
+   */
+  const struct vfs_fatfs_dir_node_vmt *vmt;
+  __vfs_fatfs_dir_node_data
+} vfs_fatfs_dir_node_t;
+
+/**
+ * @brief   @p vfs_fatfs_file_node_t specific methods.
+ */
+#define __vfs_fatfs_file_node_methods                                       \
+  __vfs_file_node_methods
+
+/**
+ * @brief   @p vfs_fatfs_file_node_t specific data.
+ */
+#define __vfs_fatfs_file_node_data                                          \
+  __vfs_file_node_data                                                      \
+  FIL                           file;                                       \
+  BaseSequentialStream          *stream;
+
+/**
+ * @brief   @p vfs_fatfs_file_node_t virtual methods table.
+ */
+struct vfs_fatfs_file_node_vmt {
+  __vfs_fatfs_file_node_methods
+};
+
+/**
+ * @brief   Type of a structure representing a FatFS file VFS node.
+ */
+typedef struct vfs_fatfs_file_node {
+  /**
+   * @brief   Virtual Methods Table.
+   */
+  const struct vfs_fatfs_file_node_vmt *vmt;
+  __vfs_fatfs_file_node_data
+} vfs_fatfs_file_node_t;
+
+/**
+ * @brief   @p vfs_fatfs_driver_t specific methods.
+ */
+#define __vfs_fatfs_driver_methods                                          \
+  __vfs_driver_methods
+
+/**
+ * @brief   @p vfs_fatfs_driver_t specific data.
+ */
+#define __vfs_fatfs_driver_data                                             \
+  __vfs_driver_data                                                         \
+  memory_pool_t                 file_nodes_pool;                            \
+  memory_pool_t                 dir_nodes_pool;                             \
+  memory_pool_t                 info_nodes_pool;
+
+/**
+ * @brief   @p vfs_fatfs_driver_t virtual methods table.
+ */
+struct vfs_fatfs_driver_vmt {
+  __vfs_fatfs_driver_methods
+};
+
+/**
+ * @brief   Type of a structure representing a VFS FatFS driver.
+ */
+typedef struct vfs_drv_streams {
+  /**
+   * @brief   Virtual Methods Table.
+   */
+  const struct vfs_fatfs_driver_vmt   *vmt;
+  __vfs_fatfs_driver_data
+} vfs_fatfs_driver_t;
+
 /*===========================================================================*/
 /* Module macros.                                                            */
 /*===========================================================================*/
diff --git a/os/vfs/drivers/overlay/drvoverlay.h b/os/vfs/drivers/overlay/drvoverlay.h
index 41729582b..9d4caa65c 100644
--- a/os/vfs/drivers/overlay/drvoverlay.h
+++ b/os/vfs/drivers/overlay/drvoverlay.h
@@ -28,8 +28,6 @@
 #ifndef DRVOVERLAY_H
 #define DRVOVERLAY_H
 
-#include "vfs.h"
-
 /*===========================================================================*/
 /* Module constants.                                                         */
 /*===========================================================================*/
@@ -43,6 +41,14 @@
 /*===========================================================================*/
 
 /* Configuration options checks.*/
+#if !defined(DRV_CFG_OVERLAY_DIR_NODES_NUM)
+#error "DRV_CFG_OVERLAY_DIR_NODES_NUM not defined in vfsconf.h"
+#endif
+
+#if !defined(DRV_CFG_OVERLAY_DRV_MAX)
+#error "DRV_CFG_OVERLAY_DRV_MAX not defined in vfsconf.h"
+#endif
+
 #if DRV_CFG_OVERLAY_DIR_NODES_NUM < 1
 #error "invalid value for DRV_CFG_OVERLAY_DIR_NODES_NUM"
 #endif
diff --git a/os/vfs/drivers/streams/drvstreams.h b/os/vfs/drivers/streams/drvstreams.h
index 1a5e5b7c2..1e4f53895 100644
--- a/os/vfs/drivers/streams/drvstreams.h
+++ b/os/vfs/drivers/streams/drvstreams.h
@@ -28,8 +28,6 @@
 #ifndef DRVSTREAMS_H
 #define DRVSTREAMS_H
 
-#include "vfs.h"
-
 /*===========================================================================*/
 /* Module constants.                                                         */
 /*===========================================================================*/
@@ -43,6 +41,14 @@
 /*===========================================================================*/
 
 /* Configuration options checks.*/
+#if !defined(DRV_CFG_STREAMS_DIR_NODES_NUM)
+#error "DRV_CFG_STREAMS_DIR_NODES_NUM not defined in vfsconf.h"
+#endif
+
+#if !defined(DRV_CFG_STREAMS_FILE_NODES_NUM)
+#error "DRV_CFG_STREAMS_FILE_NODES_NUM not defined in vfsconf.h"
+#endif
+
 #if DRV_CFG_STREAMS_DIR_NODES_NUM < 1
 #error "invalid value for DRV_CFG_STREAMS_DIR_NODES_NUM"
 #endif
diff --git a/os/vfs/include/vfschecks.h b/os/vfs/include/vfschecks.h
index dcc85c5d4..4b61e55f4 100644
--- a/os/vfs/include/vfschecks.h
+++ b/os/vfs/include/vfschecks.h
@@ -48,6 +48,15 @@
 #error "obsolete or unknown configuration file"
 #endif
 
+/* Configuration options checks.*/
+#if !defined(VFS_CFG_MAX_NAMELEN)
+#error "VFS_CFG_MAX_NAMELEN not defined in vfsconf.h"
+#endif
+
+#if VFS_CFG_MAX_NAMELEN < 12
+#error "invalid value for VFS_CFG_MAX_NAMELEN"
+#endif
+
 /*===========================================================================*/
 /* Derived constants and error checks.                                       */
 /*===========================================================================*/
diff --git a/os/vfs/templates/vfsconf.h b/os/vfs/templates/vfsconf.h
index 0dae7c97b..bf08e04e5 100644
--- a/os/vfs/templates/vfsconf.h
+++ b/os/vfs/templates/vfsconf.h
@@ -90,6 +90,29 @@
 
 /** @} */
 
+/*===========================================================================*/
+/**
+ * @name FatFS driver settings
+ * @{
+ */
+/*===========================================================================*/
+
+/**
+ * @brief   Number of directory nodes pre-allocated in the pool.
+ */
+#if !defined(DRV_CFG_FATFS_DIR_NODES_NUM) || defined(__DOXYGEN__)
+#define DRV_CFG_FATFS_DIR_NODES_NUM         1
+#endif
+
+/**
+ * @brief   Number of file nodes pre-allocated in the pool.
+ */
+#if !defined(DRV_CFG_FATFS_FILE_NODES_NUM) || defined(__DOXYGEN__)
+#define DRV_CFG_FATFS_FILE_NODES_NUM        2
+#endif
+
+/** @} */
+
 #endif /* VFSCONF_H */
 
 /** @} */