config FS_EXT4
  	bool "Enable ext4 filesystem support"
  	help
  	  This provides support for reading images from the ext4 filesystem.
  	  ext4 is a widely used general-purpose filesystem for Linux.
  	  You can also enable CMD_EXT4 to get access to ext4 commands.
  
  config EXT4_WRITE
  	bool "Enable ext4 filesystem write support"
  	depends on FS_EXT4
  	help
  	  This provides support for creating and writing new files to an
  	  existing ext4 filesystem partition.