dtc を Homebrew, apk, dnf, MacPorts, Nix, pacman, zypper, winget でインストール

プロジェクトリンク

• ホームページ
• 上流ドキュメント
• パッケージマネージャページ

コマンドとエイリアス

• convert-dtsv0
• dtc
• dtdiff
• fdtdump
• fdtget
• fdtoverlay
• fdtput

プロジェクトの歴史

The Linux kernel documentation explains the historical setting: Devicetree came from Open Firmware as a way for firmware to describe hardware to an operating system, long used on PowerPC and SPARC. In 2005, PowerPC Linux cleanup required DT support broadly, and the Flattened Device Tree format was created so bootloaders such as U-Boot and kexec could pass a binary blob to the kernel without requiring a full Open Firmware implementation.

dtc is the userspace compiler around that format. Its manual says the compiler takes a device tree in one format and emits another, typically compiling DTS source into DTB binary output, while also supporting filesystem-style input, assembly output, YAML intermediate output, libfdt, fdtdump, fdtget, fdtput, fdtoverlay, and related tools.

The upstream repository is maintained on git.kernel.org by the DTC group. The official manual names git.kernel.org as the source location and gives the HTTP(S) upstream repository URL, making it the authoritative repo rather than a package-manager mirror.

採用の歴史

dtc adoption follows Linux and embedded adoption rather than an application popularity curve. Whenever a board port, bootloader, firmware workflow, or kernel build needs DTS-to-DTB compilation or libfdt tools, dtc becomes part of the build or debugging environment.

Package-manager coverage is broad: the input package metadata records Alpine, Homebrew, Fedora/DNF, MacPorts, Nix, Arch/pacman, winget, and zypper packages. Homebrew analytics are much higher than the other packages in this batch, which fits dtc's role as infrastructure pulled in by embedded, kernel, and hardware workflows.

使われ方

The core command compiles between input formats such as `dts`, `dtb`, and filesystem representation, and output formats such as `dtb`, `dts`, assembly, and YAML. Common workflows include compiling board `.dts` files, decompiling `.dtb` blobs for inspection, generating overlays with symbol and fixup metadata, and using libfdt utilities in scripts.

The package has no user config file or credentials. It is a compiler/tool suite whose behavior is driven by command-line options and source files.

パッケージ好きにとっての重要性

dtc is significant because it is one of those packages that looks small in a package list but represents an entire hardware-description ABI. If you build kernels, bootloaders, board support packages, or firmware images, `dtc` is often just there, quietly turning text descriptions into boot-time data.

For package nerds, it is also a reminder that not all important packages are user-facing applications. dtc is plumbing: versioned tarballs from kernel.org, a dual GPL/BSD license model, libfdt consumers, distro packaging, and an executable family that shows up anywhere embedded Linux work happens.

タイムライン

• 2005: Linux kernel documentation describes Flattened Device Tree creation during PowerPC Linux cleanup.
• 2006-01: The dtc refs page shows the `dwg-last` tag.
• 2007-08: The dtc refs page shows v1.0.0.
• 2011-05: The dtc refs page shows v1.3.0.
• 2021-06: The dtc refs page shows v1.6.1.
• 2026-05: The dtc refs page shows v1.8.1, packaged by Homebrew as the stable version.

Related projects

• Linux Devicetree support is the main operating-system context for dtc.
• U-Boot and kexec are named by the Linux kernel documentation as bootloaders or loaders modified to pass and modify DTB data.
• libfdt is part of the dtc source tree and provides library access to Flattened Device Tree data.
• Devicetree.org specifications are cited by the Linux kernel documentation as the format overview.

ソース

• https://git.kernel.org/pub/scm/utils/dtc/dtc.git
• https://git.kernel.org/pub/scm/utils/dtc/dtc.git/plain/Documentation/manual.txt
• https://git.kernel.org/pub/scm/utils/dtc/dtc.git/refs/
• https://www.kernel.org/doc/html/latest/devicetree/usage-model.html
• https://formulae.brew.sh/api/formula/dtc.json