diff --git a/packages/io/fileio/current/cdl/fileio.cdl b/packages/io/fileio/current/cdl/fileio.cdl
index cd454aa..a000411 100644
--- a/packages/io/fileio/current/cdl/fileio.cdl
+++ b/packages/io/fileio/current/cdl/fileio.cdl
@@ -224,8 +224,8 @@ cdl_package CYGPKG_IO_FILEIO {
 
     }
 
-    cdl_option CYGSEM_FILEIO_INFO_DISK_USAGE {
-        display       "cyg_fs_getinfo call for disk usage"
+    cdl_option CYGSEM_FILEIO_BLOCK_USAGE {
+        display       "Enable FS block usage queries via cyg_fs_getinfo"
         flavor        bool
         default_value 0
         description   "
diff --git a/packages/io/fileio/current/include/fileio.h b/packages/io/fileio/current/include/fileio.h
index fca6868..3084863 100644
--- a/packages/io/fileio/current/include/fileio.h
+++ b/packages/io/fileio/current/include/fileio.h
@@ -159,9 +159,7 @@ struct cyg_fstab_entry
 #define FS_INFO_GETCWD          3       /* getcwd() */
 #define FS_INFO_SYNC            4       /* cyg_fs_fssync() */
 #define FS_INFO_ATTRIB          5       /* cyg_fs_(get|set)_attrib() */
-#ifdef  CYGSEM_FILEIO_INFO_DISK_USAGE
-#define FS_INFO_DISK_USAGE      6       /* get_disk_usage()    */
-#endif
+#define FS_INFO_BLOCK_USAGE     6       /* get_block_usage()    */
 //-----------------------------------------------------------------------------
 // Types for link()
 
@@ -177,10 +175,11 @@ struct cyg_getcwd_info
     size_t      size;           /* size of buffer */
 };
 
-struct cyg_fs_disk_usage{
-  cyg_uint64 total_blocks;
-  cyg_uint64 free_blocks;
-  cyg_uint32 block_size;
+struct cyg_fs_block_usage
+{
+    cyg_uint64 total_blocks;    /* total number of blocks available */
+    cyg_uint64 free_blocks;     /* number of free blocks in the filesystem */
+    cyg_uint32 block_size;      /* number of bytes in one block */
 };
 
 typedef cyg_uint32 cyg_fs_attrib_t;