config FS_JFFS2 bool "Enable JFFS2 filesystem support" help This provides support for reading images from JFFS2 (Journalling Flash File System version 2). JFFS2 is a log-structured file system for use with flash memory devices. It supports raw NAND devices, hard links and compression. config JFFS2_LZO bool "Enable LZO compression in JFFS2" depends on FS_JFFS2 help Enable LZO compression in the JFFS2 filesystem config JFFS2_NAND bool "Enable JFFS2 support for NAND flash" depends on FS_JFFS2 help Enable support for NAND flash as the backing store for JFFS2.