1# SPDX-License-Identifier: GPL-2.0-only
2config ISO9660_FS
3	tristate "ISO 9660 CDROM file system support"
4	select BUFFER_HEAD
5	help
6	  This is the standard file system used on CD-ROMs.  It was previously
7	  known as "High Sierra File System" and is called "hsfs" on other
8	  Unix systems.  The so-called Rock-Ridge extensions which allow for
9	  long Unix filenames and symbolic links are also supported by this
10	  driver.  If you have a CD-ROM drive and want to do more with it than
11	  just listen to audio CDs and watch its LEDs, say Y (and read
12	  <file:Documentation/filesystems/isofs.rst> and the CD-ROM-HOWTO,
13	  available from <http://www.tldp.org/docs.html#howto>), thereby
14	  enlarging your kernel by about 27 KB; otherwise say N.
15
16	  To compile this file system support as a module, choose M here: the
17	  module will be called isofs.
18
19config JOLIET
20	bool "Microsoft Joliet CDROM extensions"
21	depends on ISO9660_FS
22	select NLS
23	help
24	  Joliet is a Microsoft extension for the ISO 9660 CD-ROM file system
25	  which allows for long filenames in unicode format (unicode is the
26	  new 16 bit character code, successor to ASCII, which encodes the
27	  characters of almost all languages of the world; see
28	  <http://www.unicode.org/> for more information).  Say Y here if you
29	  want to be able to read Joliet CD-ROMs under Linux.
30
31config ZISOFS
32	bool "Transparent decompression extension"
33	depends on ISO9660_FS
34	select ZLIB_INFLATE
35	help
36	  This is a Linux-specific extension to RockRidge which lets you store
37	  data in compressed form on a CD-ROM and have it transparently
38	  decompressed when the CD-ROM is accessed.  See
39	  <http://www.kernel.org/pub/linux/utils/fs/zisofs/> for the tools
40	  necessary to create such a filesystem.  Say Y here if you want to be
41	  able to read such compressed CD-ROMs.
42