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.
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
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
.. 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
.. toctree:: :maxdepth: 1 80211/index acpi/index backlight/lp855x-driver.rst clk coco/index console crypto/index dmaengine/index dpll edac extcon firmware/index fpga/index frame-buffer aperture generic-counter generic_pt gpio/index hsi hte/index hw-recoverable-errors i2c iio/index infiniband input interconnect ipmb ipmi issei/index 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 pwrseq 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