# i2c-tools を Homebrew, apk, apt, dnf, Nix, pacman, zypper でインストール i2c-tools のインストール経路、実行ファイル、メタデータ、AI エージェント向けセキュリティノートを確認します。 ## インストール ```sh sudo av install brew:i2c-tools ``` 追加のインストールコマンド: ### macOS - Homebrew (100%): ```sh brew install i2c-tools ``` 証拠: local Homebrew formula metadata ### Linux - apk (92%): ```sh sudo apk add i2c-tools ``` 証拠: Alpine Linux edge package indexes: i2c-tools from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz - Debian apt (92%): ```sh sudo apt install i2c-tools ``` 証拠: Debian stable package indexes: i2c-tools from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz - dnf (92%): ```sh sudo dnf install i2c-tools ``` 証拠: Fedora Rawhide package metadata: i2c-tools from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst - Nix (92%): ```sh nix profile install nixpkgs#i2c-tools ``` 証拠: nixpkgs package indexes: pkgs/by-name/i2/i2c-tools/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 - pacman (92%): ```sh sudo pacman -S i2c-tools ``` 証拠: Arch Linux sync databases: i2c-tools from https://geo.mirror.pkgbuild.com/extra/os/x86_64/extra.db.tar.gz - zypper (92%): ```sh sudo zypper install i2c-tools ``` 証拠: openSUSE Tumbleweed package metadata: i2c-tools from https://download.opensuse.org/tumbleweed/repo/oss/repodata/50b07339cb64c8ed4091bdbabddadc1ff5737b090e478818a195b40d8a3292861a879139b4a3987c31109699fde9fbf4a716367ddf4eef77da75f96e3193d6ed-primary.xml.zst ## パッケージ情報 - **パッケージキー:** brew:i2c-tools - **パッケージマネージャ:** Homebrew - **バージョン:** 4.4 - **ソース概要:** Heterogeneous set of I2C tools for Linux - **ホームページ:** - **生成日時:** 2026-08-03T19:37:03+00:00 ## 実行可能ファイル - ddcmon (エイリアス) - decode-dimms (エイリアス) - decode-edid (エイリアス) - decode-vaio (エイリアス) - eeprog (エイリアス) - i2c-stub-from-dump (エイリアス) - i2cdetect (エイリアス) - i2cdump (エイリアス) - i2cget (エイリアス) - i2cset (エイリアス) - i2ctransfer (エイリアス) ## インストール挙動 - Bottle: 利用不可 ## バージョンと鮮度 - ページ生成日: 2026-08-03 - マネージャ版: 4.4 ## プロジェクトの歴史と使われ方 i2c-tools is the standard user-space toolbox for Linux I2C and SMBus work. It contains probing, dump, get, set, transfer, EEPROM, DIMM, and library pieces used by hardware bring-up engineers, Linux distribution packagers, and anyone debugging devices exposed through the kernel i2c-dev interface. ### プロジェクトの歴史 The Linux i2c wiki and project README both state that i2c-tools was originally part of lm-sensors and was split into a separate package because not all hardware-monitoring chips are I2C devices and not all I2C devices are hardware monitors. That split gave generic I2C and SMBus utilities their own release stream and repository. The 3.0.0 line started as an independent release in 2007. The 4.0 release in 2017 added libi2c, i2ctransfer, Python 3 support for py-smbus, many decode-dimms improvements, and refreshed licensing notes. Later 4.x releases continued to modernize bus listing, block reads, DDR memory decoding, build behavior, and command help. ### 採用の歴史 Because Linux exposes many I2C adapters through /dev/i2c-* and because board peripherals often need low-level checks before drivers are stable, i2c-tools became a routine package in embedded Linux, server hardware, laptop diagnostics, display data decoding, and sensor work. It is carried across major Linux package ecosystems and Homebrew for Linux. The package's adoption is practical rather than fashionable: i2cdetect, i2cdump, i2cget, i2cset, and i2ctransfer are frequently the quickest way to discover bus topology, verify register behavior, or reproduce a hardware issue outside a custom program. ### 使われ方 The core tools operate on Linux I2C buses and SMBus transactions, usually requiring the i2c-dev kernel driver and appropriate permissions. decode-dimms and decode-edid turn EEPROM data into readable hardware information, while i2ctransfer supports custom message sequences in one transfer. The project README also documents libi2c for C and C++ access over i2c-dev, py-smbus as an optional Python wrapper, and build-time control over static and dynamic library variants. ### パッケージ好きにとっての重要性 i2c-tools is a classic distribution package: small, close to the kernel, dangerous if misused, and indispensable when you need it. Its source lives under kernel.org, its bug and patch flow points to linux-i2c, and its release tarballs are signed and mirrored from kernel infrastructure. For package maintainers, it is interesting because it combines command-line utilities, scripts, library headers, optional language bindings, manpages, Linux-only requirements, and architecture-neutral hardware workflows in a compact source tree. ### タイムライン - 2007: i2c-tools 3.0.0 was released as an independent package. - 2011: i2c-tools 3.1.0 added more SMBus and DIMM decoding work. - 2017: i2c-tools 4.0 added libi2c and i2ctransfer. - 2020: i2c-tools 4.2 added a libi2c manual page and DDR5-related decode-dimms work. - 2024: i2c-tools 4.4 added getopt-based help improvements and py-smbus packaging updates. ### Related projects - Related projects include the Linux kernel i2c subsystem, lm-sensors, i2c-dev, py-smbus, JEDEC SPD decoding work, and user-space tools such as ddcutil that also depend on low-level bus access. ### ソース - - - - ## セキュリティノート narrow executable package without higher-risk signals. - **Geiger リスク:** グリーン / 低 - narrow executable package without higher-risk signals ## 他のパッケージマネージャ記録 - Debian apt - i2c-tools - 4.4-2: normalized package name match | Debian stable package indexes: i2c-tools from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | heterogeneous set of I2C tools for Linux | https://www.kernel.org/pub/software/utils/i2c-tools/ - Debian apt - libi2c-dev - 4.4-2: normalized package name match | Debian stable package indexes: libi2c-dev from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | userspace I2C programming library development files | https://www.kernel.org/pub/software/utils/i2c-tools/ - Debian apt - libi2c0 - 4.4-2: normalized package name match | Debian stable package indexes: libi2c0 from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | userspace I2C programming library | https://www.kernel.org/pub/software/utils/i2c-tools/ - Debian apt - python3-smbus - 4.4-2: normalized package name match | Debian stable package indexes: python3-smbus from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | Python 3 bindings for Linux SMBus access through i2c-dev | https://www.kernel.org/pub/software/utils/i2c-tools/ - Nix - i2c-tools: normalized package name match | nixpkgs package indexes: pkgs/by-name/i2/i2c-tools/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 - Ubuntu apt - i2c-tools - 4.3-4build2: normalized package name match | Ubuntu 24.04 LTS package indexes: i2c-tools from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | heterogeneous set of I2C tools for Linux | https://www.kernel.org/pub/software/utils/i2c-tools/ - Ubuntu apt - libi2c-dev - 4.3-4build2: normalized package name match | Ubuntu 24.04 LTS package indexes: libi2c-dev from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | userspace I2C programming library development files | https://www.kernel.org/pub/software/utils/i2c-tools/ - Ubuntu apt - libi2c0 - 4.3-4build2: normalized package name match | Ubuntu 24.04 LTS package indexes: libi2c0 from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | userspace I2C programming library | https://www.kernel.org/pub/software/utils/i2c-tools/ - Ubuntu apt - python3-smbus - 4.3-4build2: normalized package name match | Ubuntu 24.04 LTS package indexes: python3-smbus from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | Python 3 bindings for Linux SMBus access through i2c-dev | https://www.kernel.org/pub/software/utils/i2c-tools/ - apk - i2c-tools - 4.4-r3: normalized package name match | Alpine Linux edge package indexes: i2c-tools from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz | Tools for monitoring I2C devices | https://i2c.wiki.kernel.org/index.php/I2C_Tools - apk - i2c-tools-dev - 4.4-r3: normalized package name match | Alpine Linux edge package indexes: i2c-tools-dev from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz | Tools for monitoring I2C devices (development files) | https://i2c.wiki.kernel.org/index.php/I2C_Tools - apk - i2c-tools-doc - 4.4-r3: normalized package name match | Alpine Linux edge package indexes: i2c-tools-doc from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz | Tools for monitoring I2C devices (documentation) | https://i2c.wiki.kernel.org/index.php/I2C_Tools - apk - py3-smbus - 4.4-r3: normalized package name match | Alpine Linux edge package indexes: py3-smbus from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz | i2c-tools python bindings | https://i2c.wiki.kernel.org/index.php/I2C_Tools - dnf - i2c-tools - 4.4-7.fc45: normalized package name match | Fedora Rawhide package metadata: i2c-tools from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst | A heterogeneous set of I2C tools for Linux | https://i2c.wiki.kernel.org/index.php/I2C_Tools - dnf - i2c-tools-perl - 4.4-7.fc45: normalized package name match | Fedora Rawhide package metadata: i2c-tools-perl from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst | i2c tools written in Perl | https://i2c.wiki.kernel.org/index.php/I2C_Tools - dnf - libi2c - 4.4-7.fc45: normalized package name match | Fedora Rawhide package metadata: libi2c from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst | I2C/SMBus bus access library | https://i2c.wiki.kernel.org/index.php/I2C_Tools ## Combined YAML source View the package source record on GitHub. [combined/i2c-tools.yml](https://github.com/mxcl/pkgdb/blob/main/combined/i2c-tools.yml) ## ソース - pkg.so package database - Geiger risk classifier - curated package history - pkgdb category and tag curation - external package-manager database matches - cross-ecosystem install command graph