|  | .. SPDX-License-Identifier: GPL-2.0 | 
|  |  | 
|  | ============================== | 
|  | Kernel subsystem 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). | 
|  |  | 
|  | Core subsystems | 
|  | --------------- | 
|  |  | 
|  | .. toctree:: | 
|  | :maxdepth: 1 | 
|  |  | 
|  | core-api/index | 
|  | driver-api/index | 
|  | mm/index | 
|  | power/index | 
|  | scheduler/index | 
|  | timers/index | 
|  | locking/index | 
|  |  | 
|  | Human interfaces | 
|  | ---------------- | 
|  |  | 
|  | .. toctree:: | 
|  | :maxdepth: 1 | 
|  |  | 
|  | input/index | 
|  | hid/index | 
|  | sound/index | 
|  | gpu/index | 
|  | fb/index | 
|  | leds/index | 
|  |  | 
|  | Networking interfaces | 
|  | --------------------- | 
|  |  | 
|  | .. toctree:: | 
|  | :maxdepth: 1 | 
|  |  | 
|  | networking/index | 
|  | netlabel/index | 
|  | infiniband/index | 
|  | isdn/index | 
|  | mhi/index | 
|  |  | 
|  | Storage interfaces | 
|  | ------------------ | 
|  |  | 
|  | .. toctree:: | 
|  | :maxdepth: 1 | 
|  |  | 
|  | filesystems/index | 
|  | block/index | 
|  | cdrom/index | 
|  | scsi/index | 
|  | target/index | 
|  |  | 
|  | Other subsystems | 
|  | ---------------- | 
|  | **Fixme**: much more organizational work is needed here. | 
|  |  | 
|  | .. toctree:: | 
|  | :maxdepth: 1 | 
|  |  | 
|  | accounting/index | 
|  | cpu-freq/index | 
|  | fpga/index | 
|  | i2c/index | 
|  | iio/index | 
|  | pcmcia/index | 
|  | spi/index | 
|  | w1/index | 
|  | watchdog/index | 
|  | virt/index | 
|  | hwmon/index | 
|  | accel/index | 
|  | security/index | 
|  | crypto/index | 
|  | bpf/index | 
|  | usb/index | 
|  | PCI/index | 
|  | misc-devices/index | 
|  | peci/index | 
|  | wmi/index | 
|  | tee/index |