.. SPDX-License-Identifier: GPL-2.0
.. The Linux Kernel documentation master file, created by
sphinx-quickstart on Fri Feb 12 13:51:46 2016.
You can adapt this file completely to your liking, but it should at least
contain the root `toctree` directive.
.. _linux_doc:
The Linux Kernel documentation
==============================
This is the top level of the kernel's documentation tree. Kernel
documentation, like the kernel itself, is very much a work in progress;
that is especially true as we work to integrate our many scattered
documents into a coherent whole. Please note that improvements to the
documentation are welcome; join the linux-doc list at vger.kernel.org if
you want to help out.
Licensing documentation
-----------------------
The following describes the license of the Linux kernel source code
(GPLv2), how to properly mark the license of individual files in the source
tree, as well as links to the full license text.
* :ref:`kernel_licensing`
User-oriented documentation
---------------------------
The following manuals are written for *users* of the kernel — those who are
trying to get it to work optimally on a given system.
.. toctree::
:maxdepth: 2
admin-guide/index
kbuild/index
Firmware-related documentation
------------------------------
The following holds information on the kernel's expectations regarding the
platform firmwares.
.. toctree::
:maxdepth: 2
firmware-guide/index
devicetree/index
Application-developer documentation
-----------------------------------
The user-space API manual gathers together documents describing aspects of
the kernel interface as seen by application developers.
.. toctree::
:maxdepth: 2
userspace-api/index
Introduction to kernel development
----------------------------------
These manuals contain overall information about how to develop the kernel.
The kernel community is quite large, with thousands of developers
contributing over the course of a year. As with any large community,
knowing how things are done will make the process of getting your changes
merged much easier.
.. toctree::
:maxdepth: 2
process/index
dev-tools/index
doc-guide/index
kernel-hacking/index
trace/index
maintainer/index
fault-injection/index
livepatch/index
Kernel API documentation
------------------------
These books get into the details of how specific kernel subsystems work
from the point of view of a kernel developer. Much of the information here
is taken directly from the kernel source, with supplemental material added
as needed (or at least as we managed to add it — probably *not* all that is
needed).
.. toctree::
:maxdepth: 2
driver-api/index
core-api/index
locking/index
accounting/index
block/index
cdrom/index
cpu-freq/index
ide/index
fb/index
fpga/index
hid/index
i2c/index
iio/index
isdn/index
infiniband/index
leds/index
netlabel/index
networking/index
pcmcia/index
power/index
target/index
timers/index
spi/index
w1/index
watchdog/index
virt/index
input/index
hwmon/index
gpu/index
security/index
sound/index
crypto/index
filesystems/index
vm/index
bpf/index
usb/index
PCI/index
scsi/index
misc-devices/index
scheduler/index
mhi/index
Architecture-agnostic documentation
-----------------------------------
.. toctree::
:maxdepth: 2
asm-annotations
Architecture-specific documentation
-----------------------------------
These books provide programming details about architecture-specific
implementation.
.. toctree::
:maxdepth: 2
arm/index
arm64/index
ia64/index
m68k/index
mips/index
nios2/nios2
openrisc/index
parisc/index
powerpc/index
riscv/index
s390/index
sh/index
sparc/index
x86/index
xtensa/index
Filesystem Documentation
------------------------
The documentation in this section are provided by specific filesystem
subprojects.
.. toctree::
:maxdepth: 2
filesystems/ext4/index
Other documentation
-------------------
There are several unsorted documents that don't seem to fit on other parts
of the documentation body, or may require some adjustments and/or conversion
to ReStructured Text format, or are simply too old.
.. toctree::
:maxdepth: 2
staging/index
watch_queue
Translations
------------
.. toctree::
:maxdepth: 2
translations/index
Indices and tables
==================
* :ref:`genindex`