:orphan:

.. title:: CONFIG_FS_FATFS_READ_ONLY

.. kconfig:: CONFIG_FS_FATFS_READ_ONLY

CONFIG_FS_FATFS_READ_ONLY
#########################

*Read-only support for all volumes*

Type: ``bool``

Help
====

.. code-block:: none

    The option excludes write code from ELM FAT file system driver;
    when selected, it no longer will be possible to write data on
    the FAT FS.
    If write support is not needed, enabling this flag will slightly
    reduce application size.
    This option translates to _FS_READONLY within ELM FAT file system
    driver; it enables exclusion, from compilation, of write supporting
    code.

Direct dependencies
===================

\ :kconfig:`FAT_FILESYSTEM_ELM <CONFIG_FAT_FILESYSTEM_ELM>` && \ :kconfig:`FILE_SYSTEM <CONFIG_FILE_SYSTEM>`

*(Includes any dependencies from ifs and menus.)*

Defaults
========

No defaults. Implicitly defaults to ``n``.

Kconfig definition
==================



At ``<Zephyr Subsystem>/fs/Kconfig.fatfs:17``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:44`` → ``<Zephyr Subsystem>/Kconfig:25`` → ``<Zephyr Subsystem>/fs/Kconfig:60``

Menu path: (Top) → Sub Systems and OS Services → File Systems → File system support → ELM FAT file system support → ELM FAT file system settings

.. code-block:: kconfig

    config FS_FATFS_READ_ONLY
    	bool "Read-only support for all volumes" if FAT_FILESYSTEM_ELM
    	depends on FAT_FILESYSTEM_ELM && FILE_SYSTEM
    	help
    	  The option excludes write code from ELM FAT file system driver;
    	  when selected, it no longer will be possible to write data on
    	  the FAT FS.
    	  If write support is not needed, enabling this flag will slightly
    	  reduce application size.
    	  This option translates to _FS_READONLY within ELM FAT file system
    	  driver; it enables exclusion, from compilation, of write supporting
    	  code.

*(The 'depends on' condition includes propagated dependencies from ifs and menus.)*