Creating jffs2 filesystem image for embedded target platform

$ mkfs.jffs2 --help

mkfs.jffs2: error!: Usage: mkfs.jffs2 [OPTIONS]
Make a JFFS2 file system image from an existing directory tree

Options:
-p, –pad[=SIZE] Pad output to SIZE bytes with 0xFF. If SIZE is
not specified, the output is padded to the end of
the final erase block
-r, -d, –root=DIR Build file system from directory DIR (default: cwd)
-s, –pagesize=SIZE Use page size (max data node size) SIZE.
Set according to target system’s memory management
page size (default: 4KiB)
-e, –eraseblock=SIZE Use erase block size SIZE (default: 64KiB)
-c, –cleanmarker=SIZE Size of cleanmarker (default 12)
-m, –compr-mode=MODE Select compression mode (default: priority)
-x, –disable-compressor=COMPRESSOR_NAME
Disable a compressor
-X, –enable-compressor=COMPRESSOR_NAME
Enable a compressor
-y, –compressor-priority=PRIORITY:COMPRESSOR_NAME
Set the priority of a compressor
-L, –list-compressors Show the list of the available compressors
-t, –test-compression Call decompress and compare with the original (for test)
-n, –no-cleanmarkers Don’t add a cleanmarker to every eraseblock
-o, –output=FILE Output to FILE (default: stdout)
-l, –little-endian Create a little-endian filesystem
-b, –big-endian Create a big-endian filesystem
-D, –devtable=FILE Use the named FILE as a device table file
-f, –faketime Change all file times to ‘0’ for regression testing
-q, –squash Squash permissions and owners making all files be owned by root
-U, –squash-uids Squash owners making all files be owned by root
-P, –squash-perms Squash permissions on all files
–with-xattr stuff all xattr entries into image
–with-selinux stuff only SELinux Labels into jffs2 image
–with-posix-acl stuff only POSIX ACL entries into jffs2 image
-h, –help Display this help text
-v, –verbose Verbose operation
-V, –version Display version information
-i, –incremental=FILE Parse FILE and generate appendage output for it

$ mkfs.jffs2 -n -p -e 128KiB -b -d /home/myuser/rfs -o myrfs.jffs2