Documentation for device trees, a data structure by which bootloaders passhardware layout to Linux in a device-independent manner, simplifying hardwareprobing. This subsystem is maintained by Grant Likely<grant.likely@secretlab.ca> and has a mailing list athttps://lists.ozlabs.org/listinfo/devicetree-discuss00-INDEX - this filebooting-without-of.txt - Booting Linux without Open Firmware, describes history and format of device trees.usage-model.txt - How Linux uses DT and what DT aims to solve.