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1
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.
5Please keep the descriptions small enough to fit on one line.
6 Thanks -- Paul G.
7
8Following translations are available on the WWW:
9
10 - Japanese, maintained by the JF Project (jf@listserv.linux.or.jp), at
11 http://linuxjf.sourceforge.jp/
12
1300-INDEX
14 - this file.
15ABI/
16 - info on kernel <-> userspace ABI and relative interface stability.
17CodingStyle
18 - nothing here, just a pointer to process/coding-style.rst.
19DMA-API.txt
20 - DMA API, pci_ API & extensions for non-consistent memory machines.
21DMA-API-HOWTO.txt
22 - Dynamic DMA mapping Guide
23DMA-ISA-LPC.txt
24 - How to do DMA with ISA (and LPC) devices.
25DMA-attributes.txt
26 - listing of the various possible attributes a DMA region can have
27EDID/
28 - directory with info on customizing EDID for broken gfx/displays.
29IPMI.txt
30 - info on Linux Intelligent Platform Management Interface (IPMI) Driver.
31IRQ-affinity.txt
32 - how to select which CPU(s) handle which interrupt events on SMP.
33IRQ-domain.txt
34 - info on interrupt numbering and setting up IRQ domains.
35IRQ.txt
36 - description of what an IRQ is.
37Intel-IOMMU.txt
38 - basic info on the Intel IOMMU virtualization support.
39Makefile
40 - It's not of interest for those who aren't touching the build system.
41PCI/
42 - info related to PCI drivers.
43RCU/
44 - directory with info on RCU (read-copy update).
45SAK.txt
46 - info on Secure Attention Keys.
47SM501.txt
48 - Silicon Motion SM501 multimedia companion chip
49SubmittingPatches
50 - nothing here, just a pointer to process/coding-style.rst.
51accounting/
52 - documentation on accounting and taskstats.
53acpi/
54 - info on ACPI-specific hooks in the kernel.
55admin-guide/
56 - info related to Linux users and system admins.
57aoe/
58 - description of AoE (ATA over Ethernet) along with config examples.
59arm/
60 - directory with info about Linux on the ARM architecture.
61arm64/
62 - directory with info about Linux on the 64 bit ARM architecture.
63auxdisplay/
64 - misc. LCD driver documentation (cfag12864b, ks0108).
65backlight/
66 - directory with info on controlling backlights in flat panel displays
67bcache.txt
68 - Block-layer cache on fast SSDs to improve slow (raid) I/O performance.
69block/
70 - info on the Block I/O (BIO) layer.
71blockdev/
72 - info on block devices & drivers
73bt8xxgpio.txt
74 - info on how to modify a bt8xx video card for GPIO usage.
75btmrvl.txt
76 - info on Marvell Bluetooth driver usage.
77bus-devices/
78 - directory with info on TI GPMC (General Purpose Memory Controller)
79bus-virt-phys-mapping.txt
80 - how to access I/O mapped memory from within device drivers.
81cachetlb.txt
82 - describes the cache/TLB flushing interfaces Linux uses.
83cdrom/
84 - directory with information on the CD-ROM drivers that Linux has.
85cgroup-v1/
86 - cgroups v1 features, including cpusets and memory controller.
87cgroup-v2.txt
88 - cgroups v2 features, including cpusets and memory controller.
89circular-buffers.txt
90 - how to make use of the existing circular buffer infrastructure
91clk.txt
92 - info on the common clock framework
93cma/
94 - Continuous Memory Area (CMA) debugfs interface.
95conf.py
96 - It's not of interest for those who aren't touching the build system.
97connector/
98 - docs on the netlink based userspace<->kernel space communication mod.
99console/
100 - documentation on Linux console drivers.
101core-api/
102 - documentation on kernel core components.
103cpu-freq/
104 - info on CPU frequency and voltage scaling.
105cpu-hotplug.txt
106 - document describing CPU hotplug support in the Linux kernel.
107cpu-load.txt
108 - document describing how CPU load statistics are collected.
109cpuidle/
110 - info on CPU_IDLE, CPU idle state management subsystem.
111cputopology.txt
112 - documentation on how CPU topology info is exported via sysfs.
113crc32.txt
114 - brief tutorial on CRC computation
115crypto/
116 - directory with info on the Crypto API.
117dcdbas.txt
118 - information on the Dell Systems Management Base Driver.
119debugging-modules.txt
120 - some notes on debugging modules after Linux 2.6.3.
121debugging-via-ohci1394.txt
122 - how to use firewire like a hardware debugger memory reader.
123dell_rbu.txt
124 - document demonstrating the use of the Dell Remote BIOS Update driver.
125dev-tools/
126 - directory with info on development tools for the kernel.
127device-mapper/
128 - directory with info on Device Mapper.
129dmaengine/
130 - the DMA engine and controller API guides.
131devicetree/
132 - directory with info on device tree files used by OF/PowerPC/ARM
133digsig.txt
134 -info on the Digital Signature Verification API
135dma-buf-sharing.txt
136 - the DMA Buffer Sharing API Guide
137docutils.conf
138 - nothing here. Just a configuration file for docutils.
139dontdiff
140 - file containing a list of files that should never be diff'ed.
141driver-api/
142 - the Linux driver implementer's API guide.
143driver-model/
144 - directory with info about Linux driver model.
145early-userspace/
146 - info about initramfs, klibc, and userspace early during boot.
147efi-stub.txt
148 - How to use the EFI boot stub to bypass GRUB or elilo on EFI systems.
149eisa.txt
150 - info on EISA bus support.
151extcon/
152 - directory with porting guide for Android kernel switch driver.
153isa.txt
154 - info on EISA bus support.
155fault-injection/
156 - dir with docs about the fault injection capabilities infrastructure.
157fb/
158 - directory with info on the frame buffer graphics abstraction layer.
159features/
160 - status of feature implementation on different architectures.
161filesystems/
162 - info on the vfs and the various filesystems that Linux supports.
163firmware_class/
164 - request_firmware() hotplug interface info.
165flexible-arrays.txt
166 - how to make use of flexible sized arrays in linux
167fmc/
168 - information about the FMC bus abstraction
169fpga/
170 - FPGA Manager Core.
171futex-requeue-pi.txt
172 - info on requeueing of tasks from a non-PI futex to a PI futex
173gcc-plugins.txt
174 - GCC plugin infrastructure.
175gpio/
176 - gpio related documentation
177gpu/
178 - directory with information on GPU driver developer's guide.
179hid/
180 - directory with information on human interface devices
181highuid.txt
182 - notes on the change from 16 bit to 32 bit user/group IDs.
183hwspinlock.txt
184 - hardware spinlock provides hardware assistance for synchronization
185timers/
186 - info on the timer related topics
187hw_random.txt
188 - info on Linux support for random number generator in i8xx chipsets.
189hwmon/
190 - directory with docs on various hardware monitoring drivers.
191i2c/
192 - directory with info about the I2C bus/protocol (2 wire, kHz speed).
193x86/i386/
194 - directory with info about Linux on Intel 32 bit architecture.
195ia64/
196 - directory with info about Linux on Intel 64 bit architecture.
197ide/
198 - Information regarding the Enhanced IDE drive.
199iio/
200 - info on industrial IIO configfs support.
201index.rst
202 - main index for the documentation at ReST format.
203infiniband/
204 - directory with documents concerning Linux InfiniBand support.
205input/
206 - info on Linux input device support.
207intel_txt.txt
208 - info on intel Trusted Execution Technology (intel TXT).
209io-mapping.txt
210 - description of io_mapping functions in linux/io-mapping.h
211io_ordering.txt
212 - info on ordering I/O writes to memory-mapped addresses.
213ioctl/
214 - directory with documents describing various IOCTL calls.
215iostats.txt
216 - info on I/O statistics Linux kernel provides.
217irqflags-tracing.txt
218 - how to use the irq-flags tracing feature.
219isapnp.txt
220 - info on Linux ISA Plug & Play support.
221isdn/
222 - directory with info on the Linux ISDN support, and supported cards.
223kbuild/
224 - directory with info about the kernel build process.
225kdump/
226 - directory with mini HowTo on getting the crash dump code to work.
227doc-guide/
228 - how to write and format reStructuredText kernel documentation
229kernel-per-CPU-kthreads.txt
230 - List of all per-CPU kthreads and how they introduce jitter.
231kobject.txt
232 - info of the kobject infrastructure of the Linux kernel.
233kprobes.txt
234 - documents the kernel probes debugging feature.
235kref.txt
236 - docs on adding reference counters (krefs) to kernel objects.
237laptops/
238 - directory with laptop related info and laptop driver documentation.
239ldm.txt
240 - a brief description of LDM (Windows Dynamic Disks).
241leds/
242 - directory with info about LED handling under Linux.
243livepatch/
244 - info on kernel live patching.
245locking/
246 - directory with info about kernel locking primitives
247lockup-watchdogs.txt
248 - info on soft and hard lockup detectors (aka nmi_watchdog).
249logo.gif
250 - full colour GIF image of Linux logo (penguin - Tux).
251logo.txt
252 - info on creator of above logo & site to get additional images from.
253lsm.txt
254 - Linux Security Modules: General Security Hooks for Linux
255lzo.txt
256 - kernel LZO decompressor input formats
257m68k/
258 - directory with info about Linux on Motorola 68k architecture.
259mailbox.txt
260 - How to write drivers for the common mailbox framework (IPC).
261md/
262 - directory with info about Linux Software RAID
263media/
264 - info on media drivers: uAPI, kAPI and driver documentation.
265memory-barriers.txt
266 - info on Linux kernel memory barriers.
267memory-devices/
268 - directory with info on parts like the Texas Instruments EMIF driver
269memory-hotplug.txt
270 - Hotpluggable memory support, how to use and current status.
271men-chameleon-bus.txt
272 - info on MEN chameleon bus.
273mic/
274 - Intel Many Integrated Core (MIC) architecture device driver.
275mips/
276 - directory with info about Linux on MIPS architecture.
277misc-devices/
278 - directory with info about devices using the misc dev subsystem
279mmc/
280 - directory with info about the MMC subsystem
281mtd/
282 - directory with info about memory technology devices (flash)
283namespaces/
284 - directory with various information about namespaces
285netlabel/
286 - directory with information on the NetLabel subsystem.
287networking/
288 - directory with info on various aspects of networking with Linux.
289nfc/
290 - directory relating info about Near Field Communications support.
291nios2/
292 - Linux on the Nios II architecture.
293nommu-mmap.txt
294 - documentation about no-mmu memory mapping support.
295numastat.txt
296 - info on how to read Numa policy hit/miss statistics in sysfs.
297ntb.txt
298 - info on Non-Transparent Bridge (NTB) drivers.
299nvdimm/
300 - info on non-volatile devices.
301nvmem/
302 - info on non volatile memory framework.
303output/
304 - default directory where html/LaTeX/pdf files will be written.
305padata.txt
306 - An introduction to the "padata" parallel execution API
307parisc/
308 - directory with info on using Linux on PA-RISC architecture.
309parport-lowlevel.txt
310 - description and usage of the low level parallel port functions.
311pcmcia/
312 - info on the Linux PCMCIA driver.
313percpu-rw-semaphore.txt
314 - RCU based read-write semaphore optimized for locking for reading
315perf/
316 - info about the APM X-Gene SoC Performance Monitoring Unit (PMU).
317phy/
318 - ino on Samsung USB 2.0 PHY adaptation layer.
319phy.txt
320 - Description of the generic PHY framework.
321pi-futex.txt
322 - documentation on lightweight priority inheritance futexes.
323pinctrl.txt
324 - info on pinctrl subsystem and the PINMUX/PINCONF and drivers
325platform/
326 - List of supported hardware by compal and Dell laptop.
327pnp.txt
328 - Linux Plug and Play documentation.
329power/
330 - directory with info on Linux PCI power management.
331powerpc/
332 - directory with info on using Linux with the PowerPC.
333prctl/
334 - directory with info on the priveledge control subsystem
335preempt-locking.txt
336 - info on locking under a preemptive kernel.
337process/
338 - how to work with the mainline kernel development process.
339pps/
340 - directory with information on the pulse-per-second support
341pti/
342 - directory with info on Intel MID PTI.
343ptp/
344 - directory with info on support for IEEE 1588 PTP clocks in Linux.
345pwm.txt
346 - info on the pulse width modulation driver subsystem
347rapidio/
348 - directory with info on RapidIO packet-based fabric interconnect
349rbtree.txt
350 - info on what red-black trees are and what they are for.
351remoteproc.txt
352 - info on how to handle remote processor (e.g. AMP) offloads/usage.
353rfkill.txt
354 - info on the radio frequency kill switch subsystem/support.
355robust-futex-ABI.txt
356 - documentation of the robust futex ABI.
357robust-futexes.txt
358 - a description of what robust futexes are.
359rpmsg.txt
360 - info on the Remote Processor Messaging (rpmsg) Framework
361rtc.txt
362 - notes on how to use the Real Time Clock (aka CMOS clock) driver.
363s390/
364 - directory with info on using Linux on the IBM S390.
365scheduler/
366 - directory with info on the scheduler.
367scsi/
368 - directory with info on Linux scsi support.
369security/
370 - directory that contains security-related info
371serial/
372 - directory with info on the low level serial API.
373sgi-ioc4.txt
374 - description of the SGI IOC4 PCI (multi function) device.
375sh/
376 - directory with info on porting Linux to a new architecture.
377smsc_ece1099.txt
378 -info on the smsc Keyboard Scan Expansion/GPIO Expansion device.
379sound/
380 - directory with info on sound card support.
381spi/
382 - overview of Linux kernel Serial Peripheral Interface (SPI) support.
383sphinx/
384 - no documentation here, just files required by Sphinx toolchain.
385sphinx-static/
386 - no documentation here, just files required by Sphinx toolchain.
387static-keys.txt
388 - info on how static keys allow debug code in hotpaths via patching
389svga.txt
390 - short guide on selecting video modes at boot via VGA BIOS.
391sync_file.txt
392 - Sync file API guide.
393sysctl/
394 - directory with info on the /proc/sys/* files.
395target/
396 - directory with info on generating TCM v4 fabric .ko modules
397tee.txt
398 - info on the TEE subsystem and drivers
399this_cpu_ops.txt
400 - List rationale behind and the way to use this_cpu operations.
401thermal/
402 - directory with information on managing thermal issues (CPU/temp)
403trace/
404 - directory with info on tracing technologies within linux
405translations/
406 - translations of this document from English to another language
407unaligned-memory-access.txt
408 - info on how to avoid arch breaking unaligned memory access in code.
409unshare.txt
410 - description of the Linux unshare system call.
411usb/
412 - directory with info regarding the Universal Serial Bus.
413vfio.txt
414 - info on Virtual Function I/O used in guest/hypervisor instances.
415video-output.txt
416 - sysfs class driver interface to enable/disable a video output device.
417virtual/
418 - directory with information on the various linux virtualizations.
419vm/
420 - directory with info on the Linux vm code.
421w1/
422 - directory with documents regarding the 1-wire (w1) subsystem.
423watchdog/
424 - how to auto-reboot Linux if it has "fallen and can't get up". ;-)
425wimax/
426 - directory with info about Intel Wireless Wimax Connections
427core-api/workqueue.rst
428 - information on the Concurrency Managed Workqueue implementation
429x86/x86_64/
430 - directory with info on Linux support for AMD x86-64 (Hammer) machines.
431xillybus.txt
432 - Overview and basic ui of xillybus driver
433xtensa/
434 - directory with documents relating to arch/xtensa port/implementation
435xz.txt
436 - how to make use of the XZ data compression within linux kernel
437zorro.txt
438 - info on writing drivers for Zorro bus devices found on Amigas.
1
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.
5Please try and keep the descriptions small enough to fit on one line.
6 Thanks -- Paul G.
7
8Following translations are available on the WWW:
9
10 - Japanese, maintained by the JF Project (JF@linux.or.jp), at
11 http://www.linux.or.jp/JF/
12
1300-INDEX
14 - this file.
15ABI/
16 - info on kernel <-> userspace ABI and relative interface stability.
17
18BUG-HUNTING
19 - brute force method of doing binary search of patches to find bug.
20Changes
21 - list of changes that break older software packages.
22CodingStyle
23 - how the boss likes the C code in the kernel to look.
24development-process/
25 - An extended tutorial on how to work with the kernel development
26 process.
27DMA-API.txt
28 - DMA API, pci_ API & extensions for non-consistent memory machines.
29DMA-ISA-LPC.txt
30 - How to do DMA with ISA (and LPC) devices.
31DocBook/
32 - directory with DocBook templates etc. for kernel documentation.
33HOWTO
34 - the process and procedures of how to do Linux kernel development.
35IPMI.txt
36 - info on Linux Intelligent Platform Management Interface (IPMI) Driver.
37IRQ-affinity.txt
38 - how to select which CPU(s) handle which interrupt events on SMP.
39IRQ.txt
40 - description of what an IRQ is.
41ManagementStyle
42 - how to (attempt to) manage kernel hackers.
43RCU/
44 - directory with info on RCU (read-copy update).
45SAK.txt
46 - info on Secure Attention Keys.
47SM501.txt
48 - Silicon Motion SM501 multimedia companion chip
49SecurityBugs
50 - procedure for reporting security bugs found in the kernel.
51SubmitChecklist
52 - Linux kernel patch submission checklist.
53SubmittingDrivers
54 - procedure to get a new driver source included into the kernel tree.
55SubmittingPatches
56 - procedure to get a source patch included into the kernel tree.
57VGA-softcursor.txt
58 - how to change your VGA cursor from a blinking underscore.
59accounting/
60 - documentation on accounting and taskstats.
61acpi/
62 - info on ACPI-specific hooks in the kernel.
63aoe/
64 - description of AoE (ATA over Ethernet) along with config examples.
65applying-patches.txt
66 - description of various trees and how to apply their patches.
67arm/
68 - directory with info about Linux on the ARM architecture.
69atomic_ops.txt
70 - semantics and behavior of atomic and bitmask operations.
71auxdisplay/
72 - misc. LCD driver documentation (cfag12864b, ks0108).
73basic_profiling.txt
74 - basic instructions for those who wants to profile Linux kernel.
75binfmt_misc.txt
76 - info on the kernel support for extra binary formats.
77blackfin/
78 - directory with documentation for the Blackfin arch.
79block/
80 - info on the Block I/O (BIO) layer.
81blockdev/
82 - info on block devices & drivers
83btmrvl.txt
84 - info on Marvell Bluetooth driver usage.
85bus-virt-phys-mapping.txt
86 - how to access I/O mapped memory from within device drivers.
87cachetlb.txt
88 - describes the cache/TLB flushing interfaces Linux uses.
89cdrom/
90 - directory with information on the CD-ROM drivers that Linux has.
91cgroups/
92 - cgroups features, including cpusets and memory controller.
93connector/
94 - docs on the netlink based userspace<->kernel space communication mod.
95console/
96 - documentation on Linux console drivers.
97cpu-freq/
98 - info on CPU frequency and voltage scaling.
99cpu-hotplug.txt
100 - document describing CPU hotplug support in the Linux kernel.
101cpu-load.txt
102 - document describing how CPU load statistics are collected.
103cpuidle/
104 - info on CPU_IDLE, CPU idle state management subsystem.
105cputopology.txt
106 - documentation on how CPU topology info is exported via sysfs.
107cris/
108 - directory with info about Linux on CRIS architecture.
109crypto/
110 - directory with info on the Crypto API.
111dcdbas.txt
112 - information on the Dell Systems Management Base Driver.
113debugging-modules.txt
114 - some notes on debugging modules after Linux 2.6.3.
115dell_rbu.txt
116 - document demonstrating the use of the Dell Remote BIOS Update driver.
117device-mapper/
118 - directory with info on Device Mapper.
119devices.txt
120 - plain ASCII listing of all the nodes in /dev/ with major minor #'s.
121dontdiff
122 - file containing a list of files that should never be diff'ed.
123driver-model/
124 - directory with info about Linux driver model.
125dvb/
126 - info on Linux Digital Video Broadcast (DVB) subsystem.
127early-userspace/
128 - info about initramfs, klibc, and userspace early during boot.
129edac.txt
130 - information on EDAC - Error Detection And Correction
131eisa.txt
132 - info on EISA bus support.
133fault-injection/
134 - dir with docs about the fault injection capabilities infrastructure.
135fb/
136 - directory with info on the frame buffer graphics abstraction layer.
137feature-removal-schedule.txt
138 - list of files and features that are going to be removed.
139filesystems/
140 - info on the vfs and the various filesystems that Linux supports.
141firmware_class/
142 - request_firmware() hotplug interface info.
143frv/
144 - Fujitsu FR-V Linux documentation.
145gpio.txt
146 - overview of GPIO (General Purpose Input/Output) access conventions.
147highuid.txt
148 - notes on the change from 16 bit to 32 bit user/group IDs.
149timers/
150 - info on the timer related topics
151hw_random.txt
152 - info on Linux support for random number generator in i8xx chipsets.
153hwmon/
154 - directory with docs on various hardware monitoring drivers.
155i2c/
156 - directory with info about the I2C bus/protocol (2 wire, kHz speed).
157i2o/
158 - directory with info about the Linux I2O subsystem.
159x86/i386/
160 - directory with info about Linux on Intel 32 bit architecture.
161ia64/
162 - directory with info about Linux on Intel 64 bit architecture.
163infiniband/
164 - directory with documents concerning Linux InfiniBand support.
165initrd.txt
166 - how to use the RAM disk as an initial/temporary root filesystem.
167input/
168 - info on Linux input device support.
169io-mapping.txt
170 - description of io_mapping functions in linux/io-mapping.h
171io_ordering.txt
172 - info on ordering I/O writes to memory-mapped addresses.
173ioctl/
174 - directory with documents describing various IOCTL calls.
175iostats.txt
176 - info on I/O statistics Linux kernel provides.
177irqflags-tracing.txt
178 - how to use the irq-flags tracing feature.
179isapnp.txt
180 - info on Linux ISA Plug & Play support.
181isdn/
182 - directory with info on the Linux ISDN support, and supported cards.
183java.txt
184 - info on the in-kernel binary support for Java(tm).
185kbuild/
186 - directory with info about the kernel build process.
187kdump/
188 - directory with mini HowTo on getting the crash dump code to work.
189kernel-doc-nano-HOWTO.txt
190 - mini HowTo on generation and location of kernel documentation files.
191kernel-docs.txt
192 - listing of various WWW + books that document kernel internals.
193kernel-parameters.txt
194 - summary listing of command line / boot prompt args for the kernel.
195kobject.txt
196 - info of the kobject infrastructure of the Linux kernel.
197kprobes.txt
198 - documents the kernel probes debugging feature.
199kref.txt
200 - docs on adding reference counters (krefs) to kernel objects.
201laptops/
202 - directory with laptop related info and laptop driver documentation.
203ldm.txt
204 - a brief description of LDM (Windows Dynamic Disks).
205leds/
206 - directory with info about LED handling under Linux.
207local_ops.txt
208 - semantics and behavior of local atomic operations.
209lockdep-design.txt
210 - documentation on the runtime locking correctness validator.
211logo.gif
212 - full colour GIF image of Linux logo (penguin - Tux).
213logo.txt
214 - info on creator of above logo & site to get additional images from.
215m68k/
216 - directory with info about Linux on Motorola 68k architecture.
217magic-number.txt
218 - list of magic numbers used to mark/protect kernel data structures.
219mca.txt
220 - info on supporting Micro Channel Architecture (e.g. PS/2) systems.
221md.txt
222 - info on boot arguments for the multiple devices driver.
223memory-barriers.txt
224 - info on Linux kernel memory barriers.
225memory-hotplug.txt
226 - Hotpluggable memory support, how to use and current status.
227memory.txt
228 - info on typical Linux memory problems.
229mips/
230 - directory with info about Linux on MIPS architecture.
231mmc/
232 - directory with info about the MMC subsystem
233mono.txt
234 - how to execute Mono-based .NET binaries with the help of BINFMT_MISC.
235mutex-design.txt
236 - info on the generic mutex subsystem.
237namespaces/
238 - directory with various information about namespaces
239netlabel/
240 - directory with information on the NetLabel subsystem.
241networking/
242 - directory with info on various aspects of networking with Linux.
243nmi_watchdog.txt
244 - info on NMI watchdog for SMP systems.
245nommu-mmap.txt
246 - documentation about no-mmu memory mapping support.
247numastat.txt
248 - info on how to read Numa policy hit/miss statistics in sysfs.
249oops-tracing.txt
250 - how to decode those nasty internal kernel error dump messages.
251padata.txt
252 - An introduction to the "padata" parallel execution API
253parisc/
254 - directory with info on using Linux on PA-RISC architecture.
255parport.txt
256 - how to use the parallel-port driver.
257parport-lowlevel.txt
258 - description and usage of the low level parallel port functions.
259pcmcia/
260 - info on the Linux PCMCIA driver.
261pi-futex.txt
262 - documentation on lightweight PI-futexes.
263pnp.txt
264 - Linux Plug and Play documentation.
265power/
266 - directory with info on Linux PCI power management.
267powerpc/
268 - directory with info on using Linux with the PowerPC.
269preempt-locking.txt
270 - info on locking under a preemptive kernel.
271printk-formats.txt
272 - how to get printk format specifiers right
273prio_tree.txt
274 - info on radix-priority-search-tree use for indexing vmas.
275ramoops.txt
276 - documentation of the ramoops oops/panic logging module.
277rbtree.txt
278 - info on what red-black trees are and what they are for.
279robust-futex-ABI.txt
280 - documentation of the robust futex ABI.
281robust-futexes.txt
282 - a description of what robust futexes are.
283rt-mutex-design.txt
284 - description of the RealTime mutex implementation design.
285rt-mutex.txt
286 - desc. of RT-mutex subsystem with PI (Priority Inheritance) support.
287rtc.txt
288 - notes on how to use the Real Time Clock (aka CMOS clock) driver.
289s390/
290 - directory with info on using Linux on the IBM S390.
291scheduler/
292 - directory with info on the scheduler.
293scsi/
294 - directory with info on Linux scsi support.
295security/
296 - directory that contains security-related info
297serial/
298 - directory with info on the low level serial API.
299serial-console.txt
300 - how to set up Linux with a serial line console as the default.
301sgi-ioc4.txt
302 - description of the SGI IOC4 PCI (multi function) device.
303sgi-visws.txt
304 - short blurb on the SGI Visual Workstations.
305sh/
306 - directory with info on porting Linux to a new architecture.
307sound/
308 - directory with info on sound card support.
309sparc/
310 - directory with info on using Linux on Sparc architecture.
311sparse.txt
312 - info on how to obtain and use the sparse tool for typechecking.
313spi/
314 - overview of Linux kernel Serial Peripheral Interface (SPI) support.
315spinlocks.txt
316 - info on using spinlocks to provide exclusive access in kernel.
317stable_api_nonsense.txt
318 - info on why the kernel does not have a stable in-kernel api or abi.
319stable_kernel_rules.txt
320 - rules and procedures for the -stable kernel releases.
321svga.txt
322 - short guide on selecting video modes at boot via VGA BIOS.
323sysfs-rules.txt
324 - How not to use sysfs.
325sysctl/
326 - directory with info on the /proc/sys/* files.
327sysrq.txt
328 - info on the magic SysRq key.
329telephony/
330 - directory with info on telephony (e.g. voice over IP) support.
331unicode.txt
332 - info on the Unicode character/font mapping used in Linux.
333unshare.txt
334 - description of the Linux unshare system call.
335usb/
336 - directory with info regarding the Universal Serial Bus.
337video-output.txt
338 - sysfs class driver interface to enable/disable a video output device.
339video4linux/
340 - directory with info regarding video/TV/radio cards and linux.
341vm/
342 - directory with info on the Linux vm code.
343volatile-considered-harmful.txt
344 - Why the "volatile" type class should not be used
345w1/
346 - directory with documents regarding the 1-wire (w1) subsystem.
347watchdog/
348 - how to auto-reboot Linux if it has "fallen and can't get up". ;-)
349x86/x86_64/
350 - directory with info on Linux support for AMD x86-64 (Hammer) machines.
351zorro.txt
352 - info on writing drivers for Zorro bus devices found on Amigas.