README.rst: clarify and update squashfs compression option documentation

Fixes: #271 Signed-off-by: Michael Olbrich <[email protected]>
pengutronix · Nov 8, 2024 · 179ee8d · 179ee8d
1 parent f76db3c
commit 179ee8d
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/README.rst b/README.rst
@@ -470,7 +470,8 @@ Options:
 
 :extraargs:		Extra arguments passed to mksquashfs
 :compression:		compression type for the image. Possible values are ``gzip``
-			(default), ``lzo``, ``xz`` or ``none``
+			(default), ``none`` and any other compressors supported by ``mksquashfs``
+			such as ``lzo``, ``lz4``, ``xz``, ``zstd`` or ``lzma``.
 :block-size:		Block size. Passed to the ``-b`` option of mksquashfs. Defaults
 			to 4096.