dev_t(3type)

💖 dev_t — the device ID type, bestie 💖

okay so you're reading the dev_t(3type) girlies' manual page, and honestly? iconic. let's get into it ✨

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🌸 NAME 🌸

dev_t — device ID 🎀

📚 LIBRARY 📚

Standard C library (libc) 🫶

✨ SYNOPSIS ✨

#include <sys/types.h>

typedef /* ... */  dev_t;

like. that's it. that's the whole synopsis. slay 💅

💅 DESCRIPTION 💅

So dev_t is the type you use for device IDs. That's its whole job, and it does it beautifully no cap 💖

It is an integer type. That's the tea ☕ — not a struct, not a pointer, an integer.

And if you want further details of this type, like the whole deep lore, go read makedev(3). That's where the details live, bestie 🦋

👑 STANDARDS 👑

POSIX.1-2024. periodt. ✨

🌈 HISTORY 🌈

POSIX.1-1988. so this girl has been around since basically forever, main character energy since day one 💀👑

🍓 NOTES 🍓

The following header also provides this type: <sys/stat.h>. so if you're already pulling in <sys/stat.h> you're covered, iykyk 😌💜

🧚 SEE ALSO 🧚

• mknod(2)
• stat(3type)

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lowkey the shortest glow-up ever — but every detail's in there, fr fr 💖

and that's the page! brought to you by Linux man-pages 6.20, dated 2026-02-08. go forth and identify devices, bestie 🎀✨💅