|  | 
 | .. 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 | 
 |  | 
 | 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 | 
 |    ioctl/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 | 
 |    ide/index | 
 |    fb/index | 
 |    fpga/index | 
 |    hid/index | 
 |    iio/index | 
 |    infiniband/index | 
 |    leds/index | 
 |    media/index | 
 |    netlabel/index | 
 |    networking/index | 
 |    pcmcia/index | 
 |    power/index | 
 |    target/index | 
 |    timers/index | 
 |    watchdog/index | 
 |    virtual/index | 
 |    input/index | 
 |    hwmon/index | 
 |    gpu/index | 
 |    security/index | 
 |    sound/index | 
 |    crypto/index | 
 |    filesystems/index | 
 |    vm/index | 
 |    bpf/index | 
 |    usb/index | 
 |    PCI/index | 
 |    misc-devices/index | 
 |    mic/index | 
 |    scheduler/index | 
 |  | 
 | Architecture-specific documentation | 
 | ----------------------------------- | 
 |  | 
 | These books provide programming details about architecture-specific | 
 | implementation. | 
 |  | 
 | .. toctree:: | 
 |    :maxdepth: 2 | 
 |  | 
 |    sh/index | 
 |    arm/index | 
 |    arm64/index | 
 |    ia64/index | 
 |    m68k/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 | 
 |  | 
 | Translations | 
 | ------------ | 
 |  | 
 | .. toctree:: | 
 |    :maxdepth: 2 | 
 |  | 
 |    translations/index | 
 |  | 
 | Indices and tables | 
 | ================== | 
 |  | 
 | * :ref:`genindex` |