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Udev

udev (userspace .mw-parser-output .monospaced{font-family:monospace,monospace}/dev) is a device manager and a device API set for the Linux kernel. As the successor of devfsd and hotplug, udev primarily manages device nodes in the /dev directory. At the same time, udev also handles all user space events raised when hardware devices are added into the…

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History, Operation & Overview

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Key facts & relationships

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Developers
Greg Kroah-Hartman and Kay Sievers
License
GPLv2
Operating system
Linux
Release
November 2003; 22 years ago (2003-11)
Repository
github.com/systemd/systemd
Stable release
261.2 / 23 July 2026; 32 days ago (23 July 2026)

Topics to explore

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Overview

Rationale

Design

Operation

History

Advanced semantic analysis

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Map overview Semantic statistics

Number of nodes, edges, triples, density and central hubs. Use it to gauge the size and connectivity of the map.

Udev

Nodes58
Edges57
Triples56
Avg. degree1.97
Density0.034483
Components1

How this topic connects Entity context

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Udev

Top relations

related to Design · 13
Udev → After, Device, Ethernet, Ethernet NIC, For, In, It, Linux, NetworkManager-daemon, NIC, That, The NetworkManager-daemon, USB
related to overview · 8
Udev → Although, Any, Greg Kroah-Hartman, Linux, One, The, Unix, Unlike
related to history · 6
Udev → In April, In October, Kay Sievers's, Linus Torvalds, Linux, The Linux
related to Operation · 3
Udev → Linux, Rules, The
Developers · 1
Udev → Greg Kroah-Hartman and Kay Sievers
License · 1
Udev → GPLv2
Operating system · 1
Udev → Linux
Release · 1
Udev → November 2003; 22 years ago (2003-11)
Repository · 1
Udev → github.com/systemd/systemd
Stable release · 1
Udev → 261.2 / 23 July 2026; 32 days ago (23 July 2026)

Important terminology Word statistics

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Important terminology

kernel device linux system daemon hal hardware devices systemd udevd new manager dev firmware interface software programs provides set user

Entity relationships Subject–Predicate–Object triples

Extracted RDF-like relationships with confidence and source. The table includes structured facts and lower-confidence contextual relations.
SubjectPredicateObjectConfidenceSrc
UdevDevelopersGreg Kroah-Hartman and Kay Sievers1.00infobox
UdevLicenseGPLv21.00infobox
UdevOperating systemLinux1.00infobox
UdevReleaseNovember 2003; 22 years ago (2003-11)1.00infobox
UdevRepositorygithub.com/systemd/systemd1.00infobox
UdevStable release261.2 / 23 July 2026; 32 days ago (23 July 2026)1.00infobox
UdevTypeDevice node1.00infobox
UdevWebsiteOfficial website1.00infobox
UdevWritten inC1.00infobox
GNOME or K Desktop Environment 3 could start the file browser to browse the file systems of newly attached USB flash drivesinstance ofdesktops0.80text
SD cards.By the middle of 2011 HAL had been deprecated by most Linux distributions as well as by the KDEinstance ofdesktops0.80text
GNOMEinstance ofdesktops0.80text

Related concept clusters Concept neighborhoods

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    Connections between topic areas Semantic bridges

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