Change disk size constant to macro in vfs_user.c.

Author: flit

source/daplink/drag-n-drop/vfs_user.c

@@ -37,9 +37,11 @@
 #include "cortex_m.h"
 #include "target_board.h"
 
-// Must be bigger than 4x the flash size of the biggest supported
-// device.  This is to accomodate for hex file programming.
-static const uint32_t disc_size = MB(64);
+//! @brief Size in bytes of the virtual disk.
+//!
+//! Must be bigger than 4x the flash size of the biggest supported
+//! device.  This is to accomodate for hex file programming.
+#define VFS_DISK_SIZE (MB(64))
 
 //! @brief Constants for magic action or config files.
 //!
@@ -131,7 +133,7 @@ void vfs_user_build_filesystem()
     uint32_t file_size;
     vfs_file_t file_handle;
     // Setup the filesystem based on target parameters
-    vfs_init(get_daplink_drive_name(), disc_size);
+    vfs_init(get_daplink_drive_name(), VFS_DISK_SIZE);
     // MBED.HTM
     file_size = get_file_size(read_file_mbed_htm);
     vfs_create_file(get_daplink_url_name(), read_file_mbed_htm, 0, file_size);