$ git log --pretty=format:'%h %s (%cs)%d'
7f3184a libfdt: Remove old MacOS strnlen workaround (2025-09-30)
(HEAD -> master, main)
9197f1c checks: Do not check overlays for alias paths (2025-08-25)
e1284ee livetree: Add only new data to fixup nodes instead of complete regeneration (2025-08-20)
cba90ce checks: Remove check for graph child addresses (2025-08-19)
763c6ab livetree: Simplify append_to_property() (2025-08-19)
739403f libfdt: Drop including string.h from libfdt_internal.h (2025-08-13)
1c6c51e Consider drive letters when checking for absolute paths on Windows. (2025-08-07)
617f3d9 ci: Add Cirrus CI configuration for FreeBSD testing (2025-08-01)
04f948e ci: Add GitLab CI configuration for Linux builds (2025-08-01)
e896802 ci: Tweaks to GitHub Actions setup (2025-08-01)
...
$ git cat-file blob HEAD:README.md
# Device Tree Compiler and libfdt
The source tree contains the Device Tree Compiler (dtc) toolchain for
working with device tree source and binary files and also libfdt, a
utility library for reading and manipulating the binary format.
dtc and libfdt are maintained by:
* [David Gibson `<david@gibson.dropbear.id.au>`](mailto:david@gibson.dropbear.id.au)
## Python library
A Python library wrapping libfdt is also available. To build this you
will need to install `swig` and Python development files. On Debian
distributions:
```
$ sudo apt-get install swig python3-dev
```
The library provides an `Fdt` class which you can use like this:
```
$ PYTHONPATH=../pylibfdt python3
>>> import libfdt
>>> fdt = libfdt.Fdt(open('test_tree1.dtb', mode='rb').read())
>>> node = fdt.path_offset('/subnode@1')
>>> print(node)
124
>>> prop_offset = fdt.first_property_offset(node)
>>> prop = fdt.get_property_by_offset(prop_offset)
>>> print('%s=%s' % (prop.name, prop.as_str()))
compatible=subnode1
>>> node2 = fdt.path_offset('/')
>>> print(fdt.getprop(node2, 'compatible').as_str())
test_tree1
```
You will find tests in `tests/pylibfdt_tests.py` showing how to use each
method. Help is available using the Python help command, e.g.:
```
$ cd pylibfdt
$ python3 -c "import libfdt; help(libfdt)"
```
If you add new features, please check code coverage:
```
$ sudo apt-get install python3-coverage
$ cd tests
# It's just 'coverage' on most other distributions
$ python3-coverage run pylibfdt_tests.py
$ python3-coverage html
# Open 'htmlcov/index.html' in your browser
```
The library can be installed with pip from a local source tree:
```
$ pip install . [--user|--prefix=/path/to/install_dir]
```
Or directly from a remote git repo:
```
$ pip install git+git://git.kernel.org/pub/scm/utils/dtc/dtc.git@main
```
The install depends on libfdt shared library being installed on the
host system first. Generally, using `--user` or `--prefix` is not
necessary and pip will use the default location for the Python
installation which varies if the user is root or not.
You can also install everything via make if you like, but pip is
recommended.
To install both libfdt and pylibfdt you can use:
```
$ make install [PREFIX=/path/to/install_dir]
```
To disable building the python library, even if swig and Python are available,
use:
```
$ make NO_PYTHON=1
```
More work remains to support all of libfdt, including access to numeric
values.
## Mailing lists
* The [devicetree-compiler](mailto:devicetree-compiler@vger.kernel.org)
list is for discussion about dtc and libfdt implementation.
* Core device tree bindings are discussed on the
[devicetree-spec](mailto:devicetree-spec@vger.kernel.org) list.
# heads (aka `branches'):
$ git for-each-ref --sort=-creatordate refs/heads \
--format='%(HEAD) %(refname:short) %(subject) (%(creatordate:short))'
main libfdt: Remove old MacOS strnlen workaround (2025-09-30)
* master libfdt: Remove old MacOS strnlen workaround (2025-09-30)
# tags:
$ git for-each-ref --sort=-creatordate refs/tags \
--format='%(refname:short) %(subject) (%(creatordate:short))'
v1.7.2 DTC 1.7.2 (2024-11-06) tar.gz
v1.7.1 DTC 1.7.1 (2024-08-17) tar.gz
v1.7.0 DTC 1.7.0 (2023-02-09) tar.gz
v1.6.1 DTC 1.6.1 (2021-06-08) tar.gz
v1.6.0 DTC 1.6.0 (2020-03-04) tar.gz
v1.5.1 DTC 1.5.1 (2019-09-04) tar.gz
v1.5.0 DTC 1.5.0 (2019-03-06) tar.gz
v1.4.7 DTC 1.4.7 (2018-07-23) tar.gz
v1.4.6 DTC 1.4.6 (2018-01-03) tar.gz
v1.4.5 DTC 1.4.5 (2017-09-27) tar.gz
...
# associated public inboxes:
# (number on the left is used for dev purposes)
735 linux-devicetree
600 devicetree-compiler
294 lkml
233 u-boot
123 linuxppc-dev
65 linux-arm-kernel
47 xen-devel
23 kvmarm
21 qemu-devel
20 kexec
13 dri-devel
10 netdev
10 linux-kbuild
8 linux-renesas-soc
8 linux-omap
7 linux-mm
7 alsa-devel
7 linux-sh
7 openembedded-core
6 linux-samsung-soc
6 netfilter-devel
6 linux-fsdevel
6 linux-media
6 stable
6 linux-mips
6 linux-rdma
6 dpdk-dev
6 linux-bluetooth
6 intel-gfx
6 linux-arch
6 linux-s390
6 linux-um
5 linux-riscv
5 linux-crypto
5 linux-acpi
5 linux-scsi
5 linux-gpio
5 git
5 amd-gfx
5 linux-perf-users
4 linux-wireless
4 linux-xfs
4 linux-nfs
4 linux-mediatek
4 linux-arm-msm
4 linux-snps-arc
4 linux-rtc
4 linux-btrfs
4 linux-usb
4 selinux
4 linux-ext4
4 linux-security-module
4 kvm
4 linux-serial
4 linux-doc
4 linux-mmc
4 linux-api
4 linux-tegra
4 linux-fbdev
4 nouveau
4 sparclinux
4 buildroot
4 ltp
4 openembedded-devel
4 yocto-meta-virtualization
4 intel-wired-lan
4 intel-xe
4 qemu-riscv
4 linux-alpha
3 linux-mtd
3 bpf
3 linux-cifs
3 linux-amlogic
3 linux-iommu
3 fstests
3 linux-pm
3 linux-input
3 linux-kselftest
3 linux-clk
3 linux-iio
3 linux-pci
3 linux-ide
3 linux-watchdog
3 util-linux
3 linux-csky
3 linux-i2c
3 linux-pwm
3 linux-rockchip
3 platform-driver-x86
3 openbmc
3 linux-hardening
3 linux-cxl
3 linux-staging
3 ofono
3 yocto
3 yocto-meta-arm
3 yocto-meta-ti
3 yocto-meta-arago
3 openrisc
3 poky
3 linux-ia64
3 cluster-devel
3 grub-devel
3 kvm-ppc
3 linux-hexagon
3 igt-dev
2 linux-block
2 linux-nvme
2 linux-efi
2 linux-erofs
2 linux-hwmon
2 driverdev-devel
2 dmaengine
2 linux-parisc
2 linux-f2fs-devel
2 linux-modules
2 linux-rt-users
2 linux-trace-devel
2 workflows
2 linux-m68k
2 linux-i3c
2 backports
2 linux-kernel-mentees
2 linux-man
2 cip-dev
2 linux-audit
2 linux-spi
2 linux-sparse
2 lttng-dev
2 virtualization
2 linux-can
2 containers
2 linux-raid
2 dm-devel
2 target-devel
2 soc
2 rust-for-linux
2 linux-phy
2 linux-sunxi
2 mptcp
2 linux-coco
2 nvdimm
2 linux-bcachefs
2 llvm
2 fio
2 iwd
2 yocto-meta-freescale
2 yocto-toaster
2 yocto-docs
2 bitbake-devel
2 linux-patches
2 chrome-platform
2 outreachy
2 xenomai
2 damon
2 loongarch
2 imx
2 b4-sent
2 linux-trace-kernel
2 virtio-comment
2 autofs
2 linux-sound
2 reiserfs-devel
2 lvm-devel
2 virtio-fs
2 fuego
1 linux-fscrypt
1 cocci
1 live-patching
1 linux-integrity
1 linux-edac
1 linux-nvdimm
1 kernel-hardening
1 linux-next
1 linux-leds
1 kernelnewbies
1 linux-sgx
1 linux-hyperv
1 rcu
1 selinux-refpolicy
1 linux-spdx
1 linux-wpan
1 ksummit-discuss
1 wireguard
1 io-uring
1 tpmdd-devel
1 linux-unionfs
1 linux-firmware
1 linux-remoteproc
1 linux-dash
1 linux-bcache
1 mm-commits
1 linux-fpga
1 ceph-devel
1 xdp-newbies
1 phone-devel
1 dash
1 keyrings
1 linux-sctp
1 lustre-devel
1 ocfs2-devel
1 ath10k
1 ath11k
1 kernel-janitors
1 tools
1 regressions
1 ksummit
1 b43-dev
1 linux-nfc
1 ath9k-devel
1 ntfs3
1 ell
1 ntb
1 asahi
1 ath12k
1 oe-linux-nfc
1 oe-kbuild-all
1 oe-chipsec
1 batman
1 virtio-dev
1 v9fs
1 ecryptfs
1 kdevops
1 kbd
1 cpufreq
1 dccp
1 cgroups
1 devicetree-spec
1 initramfs
1 hail-devel
1 kvm-ia64
1 linux-8086
1 kernel-testers
1 linux-btrace
1 linux-embedded
1 linux-hams
1 linux-hotplug
1 linux-laptop
1 trinity
1 linux-metag
1 linux-x25
1 linux-nilfs
1 lvs-devel
1 netfilter
1 linux-oxnas
1 u-boot-amlogic
1 lm-sensors
1 acpica-devel
1 perfbook
1 smatch
1 x86-cpuid
1 wireless-regdb
1 powertop
1 dtrace
1 yocto-patches
1 lkmm
1 barebox
1 linux-aspeed
1 kvm-riscv
1 sophgo
1 qemu-rust
1 qemu-arm
git clone https://yhbt.net/lore/pub/scm/utils/dtc/dtc.git