.. SPDX-License-Identifier: GPL-2.0 ============================== Driver implementer's API guide ============================== The kernel offers a wide variety of interfaces to support the development of device drivers. This document is an only somewhat organized collection of some of those interfaces — it will hopefully get better over time! The available subsections can be seen below. General information for driver authors ====================================== This section contains documentation that should, at some point or other, be of interest to most developers working on device drivers. .. toctree:: :maxdepth: 1 basics driver-model/index device_link infrastructure ioctl pm/index Useful support libraries ======================== This section contains documentation that should, at some point or other, be of interest to most developers working on device drivers. .. toctree:: :maxdepth: 1 early-userspace/index connector device-io devfreq dma-buf component io-mapping io_ordering uio-howto vfio-mediated-device vfio vfio-pci-device-specific-driver-acceptance Bus-level documentation ======================= .. toctree:: :maxdepth: 1 auxiliary_bus cxl/index eisa firewire i3c/index isa men-chameleon-bus pci/index rapidio/index slimbus usb/index virtio/index vme w1 xillybus Subsystem-specific APIs ======================= .. toctree:: :maxdepth: 1 80211/index acpi/index backlight/lp855x-driver.rst clk console crypto/index dmaengine/index dpll edac firmware/index fpga/index frame-buffer aperture generic-counter gpio/index hsi hte/index i2c iio/index infiniband input interconnect ipmb ipmi libata mailbox md/index media/index mei/index memory-devices/index message-based misc_devices miscellaneous mmc/index mtd/index mtdnand nfc/index ntb nvdimm/index nvmem parport-lowlevel phy/index pin-control pldmfw/index pps ptp pwm regulator reset rfkill s390-drivers scsi serial/index sm501 soundwire/index spi surface_aggregator/index switchtec sync_file target tee thermal/index tty/index wbrf wmi xilinx/index zorro .. only:: subproject and html Indices ======= * :ref:`genindex`