blob: 6d488509285d06f8caa17d9389527ba4412ee103 [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
Shuah Khanf59c6682016-10-06 16:12:29 -060042 - This file does nothing. Removing it breaks make htmldocs and
43 make distclean.
Mauro Carvalho Chehab0f607242016-12-05 09:41:45 -020044Makefile.sphinx
45 - This file does nothing. Removing it breaks make htmldocs and
46 make distclean.
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -020047PCI/
48 - info related to PCI drivers.
Linus Torvalds1da177e2005-04-16 15:20:36 -070049RCU/
50 - directory with info on RCU (read-copy update).
Linus Torvalds1da177e2005-04-16 15:20:36 -070051SAK.txt
52 - info on Secure Attention Keys.
Rob Landley5ef43562007-10-16 23:31:25 -070053SM501.txt
54 - Silicon Motion SM501 multimedia companion chip
Mauro Carvalho Chehab0f607242016-12-05 09:41:45 -020055SubmittingPatches
56 - nothing here, just a pointer to process/coding-style.rst.
Jesper Juhlf6b07d32007-07-15 23:41:41 -070057accounting/
58 - documentation on accounting and taskstats.
Len Brownb4d27302007-11-14 19:53:21 -050059acpi/
60 - info on ACPI-specific hooks in the kernel.
Mauro Carvalho Chehab79c87c32016-12-05 09:41:42 -020061admin-guide/
62 - info related to Linux users and system admins.
Jesper Juhlf6b07d32007-07-15 23:41:41 -070063aoe/
64 - description of AoE (ATA over Ethernet) along with config examples.
Linus Torvalds1da177e2005-04-16 15:20:36 -070065arm/
66 - directory with info about Linux on the ARM architecture.
Paul Gortmaker449e3a72013-02-14 15:20:54 -050067arm64/
68 - directory with info about Linux on the 64 bit ARM architecture.
Jesper Juhlf6b07d32007-07-15 23:41:41 -070069auxdisplay/
70 - misc. LCD driver documentation (cfag12864b, ks0108).
Paul Gortmaker449e3a72013-02-14 15:20:54 -050071backlight/
72 - directory with info on controlling backlights in flat panel displays
Henrik Austad3cf8ca12014-02-10 14:25:33 -080073bcache.txt
74 - Block-layer cache on fast SSDs to improve slow (raid) I/O performance.
Jesper Juhlf6b07d32007-07-15 23:41:41 -070075blackfin/
76 - directory with documentation for the Blackfin arch.
Linus Torvalds1da177e2005-04-16 15:20:36 -070077block/
78 - info on the Block I/O (BIO) layer.
Randy Dunlap31c00fc2008-11-13 21:33:24 +000079blockdev/
80 - info on block devices & drivers
Paul Gortmaker449e3a72013-02-14 15:20:54 -050081bt8xxgpio.txt
82 - info on how to modify a bt8xx video card for GPIO usage.
Bing Zhao196be0c2009-06-02 14:29:38 -070083btmrvl.txt
84 - info on Marvell Bluetooth driver usage.
Paul Gortmaker449e3a72013-02-14 15:20:54 -050085bus-devices/
86 - directory with info on TI GPMC (General Purpose Memory Controller)
Randy Dunlap9fe41e42010-07-19 22:20:27 +000087bus-virt-phys-mapping.txt
88 - how to access I/O mapped memory from within device drivers.
Linus Torvalds1da177e2005-04-16 15:20:36 -070089cachetlb.txt
90 - describes the cache/TLB flushing interfaces Linux uses.
Linus Torvalds1da177e2005-04-16 15:20:36 -070091cdrom/
92 - directory with information on the CD-ROM drivers that Linux has.
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -020093cgroup-v1/
94 - cgroups v1 features, including cpusets and memory controller.
95cgroup-v2.txt
96 - cgroups v2 features, including cpusets and memory controller.
Paul Gortmaker449e3a72013-02-14 15:20:54 -050097circular-buffers.txt
98 - how to make use of the existing circular buffer infrastructure
99clk.txt
100 - info on the common clock framework
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200101cma/
102 - Continuous Memory Area (CMA) debugfs interface.
Mauro Carvalho Chehab0f607242016-12-05 09:41:45 -0200103conf.py
104 - nothing here. Just a configuration file for Sphinx.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700105connector/
106 - docs on the netlink based userspace<->kernel space communication mod.
107console/
108 - documentation on Linux console drivers.
Silvio Fricke24755a52016-10-28 10:14:10 +0200109core-api/
110 - documentation on kernel core components.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700111cpu-freq/
112 - info on CPU frequency and voltage scaling.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700113cpu-hotplug.txt
114 - document describing CPU hotplug support in the Linux kernel.
115cpu-load.txt
116 - document describing how CPU load statistics are collected.
Venkatesh Pallipadife8e2882008-02-14 00:16:13 -0500117cpuidle/
118 - info on CPU_IDLE, CPU idle state management subsystem.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700119cputopology.txt
120 - documentation on how CPU topology info is exported via sysfs.
Bob Pearsonfbedceb2012-03-23 15:02:22 -0700121crc32.txt
122 - brief tutorial on CRC computation
Linus Torvalds1da177e2005-04-16 15:20:36 -0700123cris/
124 - directory with info about Linux on CRIS architecture.
125crypto/
126 - directory with info on the Crypto API.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700127dcdbas.txt
128 - information on the Dell Systems Management Base Driver.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700129debugging-modules.txt
130 - some notes on debugging modules after Linux 2.6.3.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500131debugging-via-ohci1394.txt
132 - how to use firewire like a hardware debugger memory reader.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700133dell_rbu.txt
134 - document demonstrating the use of the Dell Remote BIOS Update driver.
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200135dev-tools/
136 - directory with info on development tools for the kernel.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700137device-mapper/
138 - directory with info on Device Mapper.
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200139dmaengine/
140 - the DMA engine and controller API guides.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500141devicetree/
142 - directory with info on device tree files used by OF/PowerPC/ARM
143digsig.txt
144 -info on the Digital Signature Verification API
145dma-buf-sharing.txt
146 - the DMA Buffer Sharing API Guide
Mauro Carvalho Chehab0f607242016-12-05 09:41:45 -0200147docutils.conf
148 - nothing here. Just a configuration file for docutils.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700149dontdiff
150 - file containing a list of files that should never be diff'ed.
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200151driver-api/
152 - the Linux driver implementer's API guide.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700153driver-model/
154 - directory with info about Linux driver model.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700155early-userspace/
156 - info about initramfs, klibc, and userspace early during boot.
Adrian Bunk4a6b88c2008-02-07 00:13:33 -0800157edac.txt
158 - information on EDAC - Error Detection And Correction
Henrik Austad3cf8ca12014-02-10 14:25:33 -0800159efi-stub.txt
160 - How to use the EFI boot stub to bypass GRUB or elilo on EFI systems.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700161eisa.txt
162 - info on EISA bus support.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500163extcon/
164 - directory with porting guide for Android kernel switch driver.
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200165isa.txt
166 - info on EISA bus support.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700167fault-injection/
168 - dir with docs about the fault injection capabilities infrastructure.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700169fb/
170 - directory with info on the frame buffer graphics abstraction layer.
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200171features/
172 - status of feature implementation on different architectures.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700173filesystems/
J. Bruce Fields4f3b19c2007-09-24 18:52:09 -0400174 - info on the vfs and the various filesystems that Linux supports.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700175firmware_class/
176 - request_firmware() hotplug interface info.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500177flexible-arrays.txt
178 - how to make use of flexible sized arrays in linux
Alessandro Rubini022c6742013-06-18 23:47:24 +0200179fmc/
180 - information about the FMC bus abstraction
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200181fpga/
182 - FPGA Manager Core.
Adrian Bunk0868ff72008-02-03 15:54:28 +0200183frv/
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700184 - Fujitsu FR-V Linux documentation.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500185futex-requeue-pi.txt
186 - info on requeueing of tasks from a non-PI futex to a PI futex
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200187gcc-plugins.txt
188 - GCC plugin infrastructure.
Henrik Austad3cf8ca12014-02-10 14:25:33 -0800189gpio/
190 - gpio related documentation
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200191gpu/
192 - directory with information on GPU driver developer's guide.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500193hid/
194 - directory with information on human interface devices
Linus Torvalds1da177e2005-04-16 15:20:36 -0700195highuid.txt
196 - notes on the change from 16 bit to 32 bit user/group IDs.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500197hwspinlock.txt
198 - hardware spinlock provides hardware assistance for synchronization
Thomas Gleixner3833eec2008-03-05 18:28:15 +0100199timers/
200 - info on the timer related topics
Linus Torvalds1da177e2005-04-16 15:20:36 -0700201hw_random.txt
202 - info on Linux support for random number generator in i8xx chipsets.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700203hwmon/
204 - directory with docs on various hardware monitoring drivers.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700205i2c/
206 - directory with info about the I2C bus/protocol (2 wire, kHz speed).
Uwe Hermann71cced62008-10-20 09:32:21 -0700207x86/i386/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700208 - directory with info about Linux on Intel 32 bit architecture.
209ia64/
210 - directory with info about Linux on Intel 64 bit architecture.
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200211ide/
212 - Information regarding the Enhanced IDE drive.
213iio/
214 - info on industrial IIO configfs support.
Mauro Carvalho Chehab0f607242016-12-05 09:41:45 -0200215index.rst
216 - main index for the documentation at ReST format.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700217infiniband/
218 - directory with documents concerning Linux InfiniBand support.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700219input/
220 - info on Linux input device support.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500221intel_txt.txt
222 - info on intel Trusted Execution Technology (intel TXT).
Randy Dunlap9fe41e42010-07-19 22:20:27 +0000223io-mapping.txt
224 - description of io_mapping functions in linux/io-mapping.h
Linus Torvalds1da177e2005-04-16 15:20:36 -0700225io_ordering.txt
226 - info on ordering I/O writes to memory-mapped addresses.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700227ioctl/
228 - directory with documents describing various IOCTL calls.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700229iostats.txt
230 - info on I/O statistics Linux kernel provides.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700231irqflags-tracing.txt
232 - how to use the irq-flags tracing feature.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700233isapnp.txt
234 - info on Linux ISA Plug & Play support.
235isdn/
236 - directory with info on the Linux ISDN support, and supported cards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700237kbuild/
238 - directory with info about the kernel build process.
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200239kernel-doc-nano-HOWTO.txt
240 - outdated info about kernel-doc documentation.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700241kdump/
242 - directory with mini HowTo on getting the crash dump code to work.
Mauro Carvalho Chehab1dc4bbf2016-11-17 08:32:33 -0200243doc-guide/
Jonathan Corbet8ed292f2016-07-20 16:43:41 -0600244 - how to write and format reStructuredText kernel documentation
Henrik Austad3cf8ca12014-02-10 14:25:33 -0800245kernel-per-CPU-kthreads.txt
246 - List of all per-CPU kthreads and how they introduce jitter.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700247kobject.txt
248 - info of the kobject infrastructure of the Linux kernel.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700249kprobes.txt
250 - documents the kernel probes debugging feature.
251kref.txt
252 - docs on adding reference counters (krefs) to kernel objects.
Henrik Austad8ea8f3e2014-12-26 09:26:22 +0100253kselftest.txt
254 - small unittests for (some) individual codepaths in the kernel.
Carlos Corbachod6ff3652008-02-09 01:32:03 +0000255laptops/
256 - directory with laptop related info and laptop driver documentation.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700257ldm.txt
258 - a brief description of LDM (Windows Dynamic Disks).
Antonio Ospite9a684e12011-04-04 15:08:46 -0700259leds/
260 - directory with info about LED handling under Linux.
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200261livepatch/
262 - info on kernel live patching.
Davidlohr Bueso214e0ae2014-07-30 13:41:55 -0700263locking/
264 - directory with info about kernel locking primitives
Jean Delvarefd058732012-10-21 12:05:51 +0200265lockup-watchdogs.txt
266 - info on soft and hard lockup detectors (aka nmi_watchdog).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700267logo.gif
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700268 - full colour GIF image of Linux logo (penguin - Tux).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700269logo.txt
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700270 - info on creator of above logo & site to get additional images from.
Henrik Austad8ea8f3e2014-12-26 09:26:22 +0100271lzo.txt
272 - kernel LZO decompressor input formats
Linus Torvalds1da177e2005-04-16 15:20:36 -0700273m68k/
274 - directory with info about Linux on Motorola 68k architecture.
Henrik Austad8ea8f3e2014-12-26 09:26:22 +0100275mailbox.txt
276 - How to write drivers for the common mailbox framework (IPC).
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200277md-cluster.txt
278 - info on shared-device RAID MD cluster.
279media/
280 - info on media drivers: uAPI, kAPI and driver documentation.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700281memory-barriers.txt
282 - info on Linux kernel memory barriers.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500283memory-devices/
284 - directory with info on parts like the Texas Instruments EMIF driver
Rob Landley5ef43562007-10-16 23:31:25 -0700285memory-hotplug.txt
286 - Hotpluggable memory support, how to use and current status.
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200287men-chameleon-bus.txt
288 - info on MEN chameleon bus.
James Hoganfdabf522012-10-09 11:00:27 +0100289metag/
290 - directory with info about Linux on Meta architecture.
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200291mic/
292 - Intel Many Integrated Core (MIC) architecture device driver.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700293mips/
294 - directory with info about Linux on MIPS architecture.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500295misc-devices/
296 - directory with info about devices using the misc dev subsystem
Adrian Hunterdfe86cb2010-08-11 14:17:46 -0700297mmc/
298 - directory with info about the MMC subsystem
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500299mn10300/
300 - directory with info about the mn10300 architecture port
301mtd/
302 - directory with info about memory technology devices (flash)
Pavel Emelyanov2868f892007-11-28 16:21:39 -0800303namespaces/
304 - directory with various information about namespaces
Paul Moore8802f612006-08-03 16:45:49 -0700305netlabel/
306 - directory with information on the NetLabel subsystem.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700307networking/
308 - directory with info on various aspects of networking with Linux.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500309nfc/
310 - directory relating info about Near Field Communications support.
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200311nios2/
312 - Linux on the Nios II architecture.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700313nommu-mmap.txt
314 - documentation about no-mmu memory mapping support.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700315numastat.txt
316 - info on how to read Numa policy hit/miss statistics in sysfs.
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200317ntb.txt
318 - info on Non-Transparent Bridge (NTB) drivers.
319nvdimm/
320 - info on non-volatile devices.
321nvmem/
322 - info on non volatile memory framework.
Mauro Carvalho Chehab0f607242016-12-05 09:41:45 -0200323output/
324 - default directory where html/LaTeX/pdf files will be written.
Jonathan Corbet4047f8b2010-05-12 14:23:48 -0600325padata.txt
326 - An introduction to the "padata" parallel execution API
Linus Torvalds1da177e2005-04-16 15:20:36 -0700327parisc/
328 - directory with info on using Linux on PA-RISC architecture.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700329parport-lowlevel.txt
330 - description and usage of the low level parallel port functions.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700331pcmcia/
332 - info on the Linux PCMCIA driver.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500333percpu-rw-semaphore.txt
334 - RCU based read-write semaphore optimized for locking for reading
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200335perf/
336 - info about the APM X-Gene SoC Performance Monitoring Unit (PMU).
337phy/
338 - ino on Samsung USB 2.0 PHY adaptation layer.
Henrik Austad3cf8ca12014-02-10 14:25:33 -0800339phy.txt
340 - Description of the generic PHY framework.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700341pi-futex.txt
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500342 - documentation on lightweight priority inheritance futexes.
343pinctrl.txt
344 - info on pinctrl subsystem and the PINMUX/PINCONF and drivers
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200345platform/
346 - List of supported hardware by compal and Dell laptop.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700347pnp.txt
348 - Linux Plug and Play documentation.
349power/
350 - directory with info on Linux PCI power management.
351powerpc/
352 - directory with info on using Linux with the PowerPC.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500353prctl/
354 - directory with info on the priveledge control subsystem
Linus Torvalds1da177e2005-04-16 15:20:36 -0700355preempt-locking.txt
356 - info on locking under a preemptive kernel.
Randy Dunlapb67ad182008-11-12 13:26:55 -0800357printk-formats.txt
358 - how to get printk format specifiers right
Mauro Carvalho Chehab79c87c32016-12-05 09:41:42 -0200359process/
360 - how to work with the mainline kernel development process.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500361pps/
362 - directory with information on the pulse-per-second support
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200363pti/
364 - directory with info on Intel MID PTI.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500365ptp/
366 - directory with info on support for IEEE 1588 PTP clocks in Linux.
367pwm.txt
368 - info on the pulse width modulation driver subsystem
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500369rapidio/
370 - directory with info on RapidIO packet-based fabric interconnect
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700371rbtree.txt
372 - info on what red-black trees are and what they are for.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500373remoteproc.txt
374 - info on how to handle remote processor (e.g. AMP) offloads/usage.
375rfkill.txt
376 - info on the radio frequency kill switch subsystem/support.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700377robust-futex-ABI.txt
378 - documentation of the robust futex ABI.
379robust-futexes.txt
380 - a description of what robust futexes are.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500381rpmsg.txt
382 - info on the Remote Processor Messaging (rpmsg) Framework
Linus Torvalds1da177e2005-04-16 15:20:36 -0700383rtc.txt
384 - notes on how to use the Real Time Clock (aka CMOS clock) driver.
385s390/
386 - directory with info on using Linux on the IBM S390.
J. Bruce Fields9b8eae72008-02-07 00:13:37 -0800387scheduler/
388 - directory with info on the scheduler.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700389scsi/
390 - directory with info on Linux scsi support.
Randy Dunlapd410fa4e2011-05-19 15:59:38 -0700391security/
392 - directory that contains security-related info
Linus Torvalds1da177e2005-04-16 15:20:36 -0700393serial/
394 - directory with info on the low level serial API.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700395sgi-ioc4.txt
396 - description of the SGI IOC4 PCI (multi function) device.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700397sh/
398 - directory with info on porting Linux to a new architecture.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500399smsc_ece1099.txt
400 -info on the smsc Keyboard Scan Expansion/GPIO Expansion device.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700401sound/
402 - directory with info on sound card support.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700403spi/
404 - overview of Linux kernel Serial Peripheral Interface (SPI) support.
Mauro Carvalho Chehab0f607242016-12-05 09:41:45 -0200405sphinx/
406 - no doumentation here, just files required by Sphinx toolchain.
407sphinx-static/
408 - no doumentation here, just files required by Sphinx toolchain.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500409static-keys.txt
410 - info on how static keys allow debug code in hotpaths via patching
Linus Torvalds1da177e2005-04-16 15:20:36 -0700411svga.txt
412 - short guide on selecting video modes at boot via VGA BIOS.
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200413sync_file.txt
414 - Sync file API guide.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700415sysctl/
416 - directory with info on the /proc/sys/* files.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500417target/
418 - directory with info on generating TCM v4 fabric .ko modules
Henrik Austad3cf8ca12014-02-10 14:25:33 -0800419this_cpu_ops.txt
420 - List rationale behind and the way to use this_cpu operations.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500421thermal/
422 - directory with information on managing thermal issues (CPU/temp)
423trace/
424 - directory with info on tracing technologies within linux
Mauro Carvalho Chehab822d2892016-12-05 09:41:43 -0200425translations/
426 - translations of this document from English to another language
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500427unaligned-memory-access.txt
428 - info on how to avoid arch breaking unaligned memory access in code.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700429unshare.txt
430 - description of the Linux unshare system call.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700431usb/
432 - directory with info regarding the Universal Serial Bus.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500433vfio.txt
434 - info on Virtual Function I/O used in guest/hypervisor instances.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700435video-output.txt
436 - sysfs class driver interface to enable/disable a video output device.
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500437virtual/
438 - directory with information on the various linux virtualizations.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700439vm/
440 - directory with info on the Linux vm code.
Jesper Juhlf6b07d32007-07-15 23:41:41 -0700441w1/
442 - directory with documents regarding the 1-wire (w1) subsystem.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700443watchdog/
444 - how to auto-reboot Linux if it has "fallen and can't get up". ;-)
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500445wimax/
446 - directory with info about Intel Wireless Wimax Connections
Silvio Fricke24755a52016-10-28 10:14:10 +0200447core-api/workqueue.rst
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500448 - information on the Concurrency Managed Workqueue implementation
Uwe Hermann71cced62008-10-20 09:32:21 -0700449x86/x86_64/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700450 - directory with info on Linux support for AMD x86-64 (Hammer) machines.
Henrik Austad8ea8f3e2014-12-26 09:26:22 +0100451xillybus.txt
452 - Overview and basic ui of xillybus driver
Paul Gortmaker449e3a72013-02-14 15:20:54 -0500453xtensa/
454 - directory with documents relating to arch/xtensa port/implementation
455xz.txt
456 - how to make use of the XZ data compression within linux kernel
Linus Torvalds1da177e2005-04-16 15:20:36 -0700457zorro.txt
458 - info on writing drivers for Zorro bus devices found on Amigas.