blob: ed3e5e949fce303efec625259b527d503cf82f8d [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001
2This is a brief list of all the files in ./linux/Documentation and what
3they contain. If you add a documentation file, please list it here in
4alphabetical order as well, or risk being hunted down like a rabid dog.
Paul Gortmaker449e3a72013-02-14 15:20:54 -05005Please keep the descriptions small enough to fit on one line.
Linus Torvalds1da177e2005-04-16 15:20:36 -07006 Thanks -- Paul G.
7
8Following translations are available on the WWW:
9
Masanari Iida010f4562012-02-14 23:19:07 +090010 - Japanese, maintained by the JF Project (jf@listserv.linux.or.jp), at
11 http://linuxjf.sourceforge.jp/
Linus Torvalds1da177e2005-04-16 15:20:36 -070012
1300-INDEX
14 - this file.
Jesper Juhlf6b07d32007-07-15 23:41:41 -070015ABI/
16 - info on kernel <-> userspace ABI and relative interface stability.
Mauro Carvalho Chehab0f607242016-12-05 09:41:45 -020017CodingStyle
18 - nothing here, just a pointer to process/coding-style.rst.
Linus Torvalds1da177e2005-04-16 15:20:36 -070019DMA-API.txt
20 - DMA API, pci_ API & extensions for non-consistent memory machines.
Paul Gortmaker449e3a72013-02-14 15:20:54 -050021DMA-API-HOWTO.txt
22 - Dynamic DMA mapping Guide
Rob Landley5ef43562007-10-16 23:31:25 -070023DMA-ISA-LPC.txt
24 - How to do DMA with ISA (and LPC) devices.
Paul Gortmaker449e3a72013-02-14 15:20:54 -050025DMA-attributes.txt
26 - listing of the various possible attributes a DMA region can have
Linus Torvalds1da177e2005-04-16 15:20:36 -070027DocBook/
28 - directory with DocBook templates etc. for kernel documentation.
Paul Gortmaker449e3a72013-02-14 15:20:54 -050029EDID/
30 - directory with info on customizing EDID for broken gfx/displays.
Linus Torvalds1da177e2005-04-16 15:20:36 -070031IPMI.txt
32 - info on Linux Intelligent Platform Management Interface (IPMI) Driver.
33IRQ-affinity.txt
34 - how to select which CPU(s) handle which interrupt events on SMP.
Paul Gortmaker449e3a72013-02-14 15:20:54 -050035IRQ-domain.txt
Murilo Opsfelder Araujo453f42d2013-08-20 20:48:39 -030036 - info on interrupt numbering and setting up IRQ domains.
Jesper Juhlf6b07d32007-07-15 23:41:41 -070037IRQ.txt
38 - description of what an IRQ is.
Paul Gortmaker449e3a72013-02-14 15:20:54 -050039Intel-IOMMU.txt
40 - basic info on the Intel IOMMU virtualization support.
41Makefile
Mauro Carvalho Chehab9e22ff42016-12-06 10:51:51 -020042 - It's not of interest for those who aren't touching the build system.
Mauro Carvalho Chehab0f607242016-12-05 09:41:45 -020043Makefile.sphinx
Mauro Carvalho Chehab9e22ff42016-12-06 10:51:51 -020044 - It's not of interest for those who aren't touching the build system.
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -020045PCI/
46 - info related to PCI drivers.
Linus Torvalds1da177e2005-04-16 15:20:36 -070047RCU/
48 - directory with info on RCU (read-copy update).
Linus Torvalds1da177e2005-04-16 15:20:36 -070049SAK.txt
50 - info on Secure Attention Keys.
Rob Landley5ef43562007-10-16 23:31:25 -070051SM501.txt
52 - Silicon Motion SM501 multimedia companion chip
Mauro Carvalho Chehab0f607242016-12-05 09:41:45 -020053SubmittingPatches
54 - nothing here, just a pointer to process/coding-style.rst.
Jesper Juhlf6b07d32007-07-15 23:41:41 -070055accounting/
56 - documentation on accounting and taskstats.
Len Brownb4d27302007-11-14 19:53:21 -050057acpi/
58 - info on ACPI-specific hooks in the kernel.
Mauro Carvalho Chehab79c87c32016-12-05 09:41:42 -020059admin-guide/
60 - info related to Linux users and system admins.
Jesper Juhlf6b07d32007-07-15 23:41:41 -070061aoe/
62 - description of AoE (ATA over Ethernet) along with config examples.
Linus Torvalds1da177e2005-04-16 15:20:36 -070063arm/
64 - directory with info about Linux on the ARM architecture.
Paul Gortmaker449e3a72013-02-14 15:20:54 -050065arm64/
66 - directory with info about Linux on the 64 bit ARM architecture.
Jesper Juhlf6b07d32007-07-15 23:41:41 -070067auxdisplay/
68 - misc. LCD driver documentation (cfag12864b, ks0108).
Paul Gortmaker449e3a72013-02-14 15:20:54 -050069backlight/
70 - directory with info on controlling backlights in flat panel displays
Henrik Austad3cf8ca12014-02-10 14:25:33 -080071bcache.txt
72 - Block-layer cache on fast SSDs to improve slow (raid) I/O performance.
Jesper Juhlf6b07d32007-07-15 23:41:41 -070073blackfin/
74 - directory with documentation for the Blackfin arch.
Linus Torvalds1da177e2005-04-16 15:20:36 -070075block/
76 - info on the Block I/O (BIO) layer.
Randy Dunlap31c00fc2008-11-13 21:33:24 +000077blockdev/
78 - info on block devices & drivers
Paul Gortmaker449e3a72013-02-14 15:20:54 -050079bt8xxgpio.txt
80 - info on how to modify a bt8xx video card for GPIO usage.
Bing Zhao196be0c2009-06-02 14:29:38 -070081btmrvl.txt
82 - info on Marvell Bluetooth driver usage.
Paul Gortmaker449e3a72013-02-14 15:20:54 -050083bus-devices/
84 - directory with info on TI GPMC (General Purpose Memory Controller)
Randy Dunlap9fe41e42010-07-19 22:20:27 +000085bus-virt-phys-mapping.txt
86 - how to access I/O mapped memory from within device drivers.
Linus Torvalds1da177e2005-04-16 15:20:36 -070087cachetlb.txt
88 - describes the cache/TLB flushing interfaces Linux uses.
Linus Torvalds1da177e2005-04-16 15:20:36 -070089cdrom/
90 - directory with information on the CD-ROM drivers that Linux has.
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -020091cgroup-v1/
92 - cgroups v1 features, including cpusets and memory controller.
93cgroup-v2.txt
94 - cgroups v2 features, including cpusets and memory controller.
Paul Gortmaker449e3a72013-02-14 15:20:54 -050095circular-buffers.txt
96 - how to make use of the existing circular buffer infrastructure
97clk.txt
98 - info on the common clock framework
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -020099cma/
100 - Continuous Memory Area (CMA) debugfs interface.
Mauro Carvalho Chehab0f607242016-12-05 09:41:45 -0200101conf.py
Mauro Carvalho Chehab9e22ff42016-12-06 10:51:51 -0200102 - It's not of interest for those who aren't touching the build system.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700103connector/
104 - docs on the netlink based userspace<->kernel space communication mod.
105console/
106 - documentation on Linux console drivers.
Silvio Fricke24755a52016-10-28 10:14:10 +0200107core-api/
108 - documentation on kernel core components.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700109cpu-freq/
110 - info on CPU frequency and voltage scaling.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700111cpu-hotplug.txt
112 - document describing CPU hotplug support in the Linux kernel.
113cpu-load.txt
114 - document describing how CPU load statistics are collected.
Venkatesh Pallipadife8e2882008-02-14 00:16:13 -0500115cpuidle/
116 - info on CPU_IDLE, CPU idle state management subsystem.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700117cputopology.txt
118 - documentation on how CPU topology info is exported via sysfs.
Bob Pearsonfbedceb2012-03-23 15:02:22 -0700119crc32.txt
120 - brief tutorial on CRC computation
Linus Torvalds1da177e2005-04-16 15:20:36 -0700121cris/
122 - directory with info about Linux on CRIS architecture.
123crypto/
124 - directory with info on the Crypto API.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700125dcdbas.txt
126 - information on the Dell Systems Management Base Driver.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700127debugging-modules.txt
128 - some notes on debugging modules after Linux 2.6.3.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500129debugging-via-ohci1394.txt
130 - how to use firewire like a hardware debugger memory reader.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700131dell_rbu.txt
132 - document demonstrating the use of the Dell Remote BIOS Update driver.
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200133dev-tools/
134 - directory with info on development tools for the kernel.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700135device-mapper/
136 - directory with info on Device Mapper.
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200137dmaengine/
138 - the DMA engine and controller API guides.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500139devicetree/
140 - directory with info on device tree files used by OF/PowerPC/ARM
141digsig.txt
142 -info on the Digital Signature Verification API
143dma-buf-sharing.txt
144 - the DMA Buffer Sharing API Guide
Mauro Carvalho Chehab0f607242016-12-05 09:41:45 -0200145docutils.conf
146 - nothing here. Just a configuration file for docutils.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700147dontdiff
148 - file containing a list of files that should never be diff'ed.
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200149driver-api/
150 - the Linux driver implementer's API guide.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700151driver-model/
152 - directory with info about Linux driver model.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700153early-userspace/
154 - info about initramfs, klibc, and userspace early during boot.
Henrik Austad3cf8ca12014-02-10 14:25:33 -0800155efi-stub.txt
156 - How to use the EFI boot stub to bypass GRUB or elilo on EFI systems.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700157eisa.txt
158 - info on EISA bus support.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500159extcon/
160 - directory with porting guide for Android kernel switch driver.
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200161isa.txt
162 - info on EISA bus support.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700163fault-injection/
164 - dir with docs about the fault injection capabilities infrastructure.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700165fb/
166 - directory with info on the frame buffer graphics abstraction layer.
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200167features/
168 - status of feature implementation on different architectures.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700169filesystems/
J. Bruce Fields4f3b19c2007-09-24 18:52:09 -0400170 - info on the vfs and the various filesystems that Linux supports.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700171firmware_class/
172 - request_firmware() hotplug interface info.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500173flexible-arrays.txt
174 - how to make use of flexible sized arrays in linux
Alessandro Rubini022c6742013-06-18 23:47:24 +0200175fmc/
176 - information about the FMC bus abstraction
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200177fpga/
178 - FPGA Manager Core.
Adrian Bunk0868ff72008-02-03 15:54:28 +0200179frv/
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700180 - Fujitsu FR-V Linux documentation.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500181futex-requeue-pi.txt
182 - info on requeueing of tasks from a non-PI futex to a PI futex
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200183gcc-plugins.txt
184 - GCC plugin infrastructure.
Henrik Austad3cf8ca12014-02-10 14:25:33 -0800185gpio/
186 - gpio related documentation
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200187gpu/
188 - directory with information on GPU driver developer's guide.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500189hid/
190 - directory with information on human interface devices
Linus Torvalds1da177e2005-04-16 15:20:36 -0700191highuid.txt
192 - notes on the change from 16 bit to 32 bit user/group IDs.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500193hwspinlock.txt
194 - hardware spinlock provides hardware assistance for synchronization
Thomas Gleixner3833eec2008-03-05 18:28:15 +0100195timers/
196 - info on the timer related topics
Linus Torvalds1da177e2005-04-16 15:20:36 -0700197hw_random.txt
198 - info on Linux support for random number generator in i8xx chipsets.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700199hwmon/
200 - directory with docs on various hardware monitoring drivers.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700201i2c/
202 - directory with info about the I2C bus/protocol (2 wire, kHz speed).
Uwe Hermann71cced62008-10-20 09:32:21 -0700203x86/i386/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700204 - directory with info about Linux on Intel 32 bit architecture.
205ia64/
206 - directory with info about Linux on Intel 64 bit architecture.
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200207ide/
208 - Information regarding the Enhanced IDE drive.
209iio/
210 - info on industrial IIO configfs support.
Mauro Carvalho Chehab0f607242016-12-05 09:41:45 -0200211index.rst
212 - main index for the documentation at ReST format.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700213infiniband/
214 - directory with documents concerning Linux InfiniBand support.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700215input/
216 - info on Linux input device support.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500217intel_txt.txt
218 - info on intel Trusted Execution Technology (intel TXT).
Randy Dunlap9fe41e42010-07-19 22:20:27 +0000219io-mapping.txt
220 - description of io_mapping functions in linux/io-mapping.h
Linus Torvalds1da177e2005-04-16 15:20:36 -0700221io_ordering.txt
222 - info on ordering I/O writes to memory-mapped addresses.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700223ioctl/
224 - directory with documents describing various IOCTL calls.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700225iostats.txt
226 - info on I/O statistics Linux kernel provides.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700227irqflags-tracing.txt
228 - how to use the irq-flags tracing feature.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700229isapnp.txt
230 - info on Linux ISA Plug & Play support.
231isdn/
232 - directory with info on the Linux ISDN support, and supported cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700233kbuild/
234 - directory with info about the kernel build process.
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200235kernel-doc-nano-HOWTO.txt
236 - outdated info about kernel-doc documentation.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700237kdump/
238 - directory with mini HowTo on getting the crash dump code to work.
Mauro Carvalho Chehab1dc4bbf2016-11-17 08:32:33 -0200239doc-guide/
Jonathan Corbet8ed292f2016-07-20 16:43:41 -0600240 - how to write and format reStructuredText kernel documentation
Henrik Austad3cf8ca12014-02-10 14:25:33 -0800241kernel-per-CPU-kthreads.txt
242 - List of all per-CPU kthreads and how they introduce jitter.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700243kobject.txt
244 - info of the kobject infrastructure of the Linux kernel.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700245kprobes.txt
246 - documents the kernel probes debugging feature.
247kref.txt
248 - docs on adding reference counters (krefs) to kernel objects.
Henrik Austad8ea8f3e2014-12-26 09:26:22 +0100249kselftest.txt
250 - small unittests for (some) individual codepaths in the kernel.
Carlos Corbachod6ff3652008-02-09 01:32:03 +0000251laptops/
252 - directory with laptop related info and laptop driver documentation.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700253ldm.txt
254 - a brief description of LDM (Windows Dynamic Disks).
Antonio Ospite9a684e12011-04-04 15:08:46 -0700255leds/
256 - directory with info about LED handling under Linux.
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200257livepatch/
258 - info on kernel live patching.
Davidlohr Bueso214e0ae2014-07-30 13:41:55 -0700259locking/
260 - directory with info about kernel locking primitives
Jean Delvarefd058732012-10-21 12:05:51 +0200261lockup-watchdogs.txt
262 - info on soft and hard lockup detectors (aka nmi_watchdog).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700263logo.gif
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700264 - full colour GIF image of Linux logo (penguin - Tux).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700265logo.txt
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700266 - info on creator of above logo & site to get additional images from.
Henrik Austad8ea8f3e2014-12-26 09:26:22 +0100267lzo.txt
268 - kernel LZO decompressor input formats
Linus Torvalds1da177e2005-04-16 15:20:36 -0700269m68k/
270 - directory with info about Linux on Motorola 68k architecture.
Henrik Austad8ea8f3e2014-12-26 09:26:22 +0100271mailbox.txt
272 - How to write drivers for the common mailbox framework (IPC).
Shaohua Li1601c592017-01-30 15:44:41 -0800273md/
274 - directory with info about Linux Software RAID
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200275media/
276 - info on media drivers: uAPI, kAPI and driver documentation.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700277memory-barriers.txt
278 - info on Linux kernel memory barriers.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500279memory-devices/
280 - directory with info on parts like the Texas Instruments EMIF driver
Rob Landley5ef43562007-10-16 23:31:25 -0700281memory-hotplug.txt
282 - Hotpluggable memory support, how to use and current status.
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200283men-chameleon-bus.txt
284 - info on MEN chameleon bus.
James Hoganfdabf522012-10-09 11:00:27 +0100285metag/
286 - directory with info about Linux on Meta architecture.
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200287mic/
288 - Intel Many Integrated Core (MIC) architecture device driver.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700289mips/
290 - directory with info about Linux on MIPS architecture.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500291misc-devices/
292 - directory with info about devices using the misc dev subsystem
Adrian Hunterdfe86cb2010-08-11 14:17:46 -0700293mmc/
294 - directory with info about the MMC subsystem
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500295mn10300/
296 - directory with info about the mn10300 architecture port
297mtd/
298 - directory with info about memory technology devices (flash)
Pavel Emelyanov2868f892007-11-28 16:21:39 -0800299namespaces/
300 - directory with various information about namespaces
Paul Moore8802f612006-08-03 16:45:49 -0700301netlabel/
302 - directory with information on the NetLabel subsystem.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700303networking/
304 - directory with info on various aspects of networking with Linux.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500305nfc/
306 - directory relating info about Near Field Communications support.
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200307nios2/
308 - Linux on the Nios II architecture.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700309nommu-mmap.txt
310 - documentation about no-mmu memory mapping support.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700311numastat.txt
312 - info on how to read Numa policy hit/miss statistics in sysfs.
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200313ntb.txt
314 - info on Non-Transparent Bridge (NTB) drivers.
315nvdimm/
316 - info on non-volatile devices.
317nvmem/
318 - info on non volatile memory framework.
Mauro Carvalho Chehab0f607242016-12-05 09:41:45 -0200319output/
320 - default directory where html/LaTeX/pdf files will be written.
Jonathan Corbet4047f8b2010-05-12 14:23:48 -0600321padata.txt
322 - An introduction to the "padata" parallel execution API
Linus Torvalds1da177e2005-04-16 15:20:36 -0700323parisc/
324 - directory with info on using Linux on PA-RISC architecture.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700325parport-lowlevel.txt
326 - description and usage of the low level parallel port functions.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700327pcmcia/
328 - info on the Linux PCMCIA driver.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500329percpu-rw-semaphore.txt
330 - RCU based read-write semaphore optimized for locking for reading
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200331perf/
332 - info about the APM X-Gene SoC Performance Monitoring Unit (PMU).
333phy/
334 - ino on Samsung USB 2.0 PHY adaptation layer.
Henrik Austad3cf8ca12014-02-10 14:25:33 -0800335phy.txt
336 - Description of the generic PHY framework.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700337pi-futex.txt
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500338 - documentation on lightweight priority inheritance futexes.
339pinctrl.txt
340 - info on pinctrl subsystem and the PINMUX/PINCONF and drivers
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200341platform/
342 - List of supported hardware by compal and Dell laptop.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700343pnp.txt
344 - Linux Plug and Play documentation.
345power/
346 - directory with info on Linux PCI power management.
347powerpc/
348 - directory with info on using Linux with the PowerPC.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500349prctl/
350 - directory with info on the priveledge control subsystem
Linus Torvalds1da177e2005-04-16 15:20:36 -0700351preempt-locking.txt
352 - info on locking under a preemptive kernel.
Randy Dunlapb67ad182008-11-12 13:26:55 -0800353printk-formats.txt
354 - how to get printk format specifiers right
Mauro Carvalho Chehab79c87c32016-12-05 09:41:42 -0200355process/
356 - how to work with the mainline kernel development process.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500357pps/
358 - directory with information on the pulse-per-second support
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200359pti/
360 - directory with info on Intel MID PTI.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500361ptp/
362 - directory with info on support for IEEE 1588 PTP clocks in Linux.
363pwm.txt
364 - info on the pulse width modulation driver subsystem
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500365rapidio/
366 - directory with info on RapidIO packet-based fabric interconnect
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700367rbtree.txt
368 - info on what red-black trees are and what they are for.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500369remoteproc.txt
370 - info on how to handle remote processor (e.g. AMP) offloads/usage.
371rfkill.txt
372 - info on the radio frequency kill switch subsystem/support.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700373robust-futex-ABI.txt
374 - documentation of the robust futex ABI.
375robust-futexes.txt
376 - a description of what robust futexes are.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500377rpmsg.txt
378 - info on the Remote Processor Messaging (rpmsg) Framework
Linus Torvalds1da177e2005-04-16 15:20:36 -0700379rtc.txt
380 - notes on how to use the Real Time Clock (aka CMOS clock) driver.
381s390/
382 - directory with info on using Linux on the IBM S390.
J. Bruce Fields9b8eae72008-02-07 00:13:37 -0800383scheduler/
384 - directory with info on the scheduler.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700385scsi/
386 - directory with info on Linux scsi support.
Randy Dunlapd410fa42011-05-19 15:59:38 -0700387security/
388 - directory that contains security-related info
Linus Torvalds1da177e2005-04-16 15:20:36 -0700389serial/
390 - directory with info on the low level serial API.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700391sgi-ioc4.txt
392 - description of the SGI IOC4 PCI (multi function) device.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700393sh/
394 - directory with info on porting Linux to a new architecture.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500395smsc_ece1099.txt
396 -info on the smsc Keyboard Scan Expansion/GPIO Expansion device.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700397sound/
398 - directory with info on sound card support.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700399spi/
400 - overview of Linux kernel Serial Peripheral Interface (SPI) support.
Mauro Carvalho Chehab0f607242016-12-05 09:41:45 -0200401sphinx/
Mauro Carvalho Chehab9e22ff42016-12-06 10:51:51 -0200402 - no documentation here, just files required by Sphinx toolchain.
Mauro Carvalho Chehab0f607242016-12-05 09:41:45 -0200403sphinx-static/
Mauro Carvalho Chehab9e22ff42016-12-06 10:51:51 -0200404 - no documentation here, just files required by Sphinx toolchain.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500405static-keys.txt
406 - info on how static keys allow debug code in hotpaths via patching
Linus Torvalds1da177e2005-04-16 15:20:36 -0700407svga.txt
408 - short guide on selecting video modes at boot via VGA BIOS.
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200409sync_file.txt
410 - Sync file API guide.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700411sysctl/
412 - directory with info on the /proc/sys/* files.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500413target/
414 - directory with info on generating TCM v4 fabric .ko modules
Jens Wiklander6a6e7702015-06-01 16:15:25 +0200415tee.txt
416 - info on the TEE subsystem and drivers
Henrik Austad3cf8ca12014-02-10 14:25:33 -0800417this_cpu_ops.txt
418 - List rationale behind and the way to use this_cpu operations.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500419thermal/
420 - directory with information on managing thermal issues (CPU/temp)
421trace/
422 - directory with info on tracing technologies within linux
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200423translations/
424 - translations of this document from English to another language
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500425unaligned-memory-access.txt
426 - info on how to avoid arch breaking unaligned memory access in code.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700427unshare.txt
428 - description of the Linux unshare system call.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700429usb/
430 - directory with info regarding the Universal Serial Bus.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500431vfio.txt
432 - info on Virtual Function I/O used in guest/hypervisor instances.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700433video-output.txt
434 - sysfs class driver interface to enable/disable a video output device.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500435virtual/
436 - directory with information on the various linux virtualizations.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700437vm/
438 - directory with info on the Linux vm code.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700439w1/
440 - directory with documents regarding the 1-wire (w1) subsystem.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700441watchdog/
442 - how to auto-reboot Linux if it has "fallen and can't get up". ;-)
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500443wimax/
444 - directory with info about Intel Wireless Wimax Connections
Silvio Fricke24755a52016-10-28 10:14:10 +0200445core-api/workqueue.rst
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500446 - information on the Concurrency Managed Workqueue implementation
Uwe Hermann71cced62008-10-20 09:32:21 -0700447x86/x86_64/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700448 - directory with info on Linux support for AMD x86-64 (Hammer) machines.
Henrik Austad8ea8f3e2014-12-26 09:26:22 +0100449xillybus.txt
450 - Overview and basic ui of xillybus driver
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500451xtensa/
452 - directory with documents relating to arch/xtensa port/implementation
453xz.txt
454 - how to make use of the XZ data compression within linux kernel
Linus Torvalds1da177e2005-04-16 15:20:36 -0700455zorro.txt
456 - info on writing drivers for Zorro bus devices found on Amigas.