TAPSET::DEV(3stap)

TAPSET::DEV 💻✨

okay bestie, welcome to the dev tapset of systemtap — it's giving "kernel device numbers, but make it cute" 🎀 and honestly? it ate.

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🌸 NAME 🌸

tapset::dev — the systemtap dev tapset, aka your little toolbox for talking about device numbers like a main character 💅

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🦋 DESCRIPTION 🦋

okay so this tapset is basically a group chat of helper functions for kernel device numbers (kdev_t), and every single one of them has its own dedicated page. let's go, one by one, no skipping, periodt ✨

• MAJOR — pulls the major device number out of a kernel device number (kdev_t). iconic extraction behavior, fr fr. 🫶

see function::MAJOR(3stap) for all the deets.

• MINOR — same energy, but it pulls the minor device number out of a kernel device number (kdev_t). yes queen, the other half. 💖

see function::MINOR(3stap) for all the deets.

• MKDEF — this one creates a value, and that value can be compared to a kernel device number (kdev_t). it's giving matchmaker energy lowkey. 🔥

see function::MKDEF(3stap) for all the deets.

• usrdev2kerndev — converts a user-space device number into the format the kernel actually uses. glow-up: applied. 🧚

see function::usrdev2kerndev(3stap) for all the deets.

not me listing every single one of these with its own reference page, because that's literally what the original does and we do not gatekeep 🎀

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👑 SEE ALSO 👑

go read these next, bestie, they're all connected, iykyk 🌈

• function::MAJOR(3stap)
• function::MINOR(3stap)
• function::MKDEF(3stap)
• function::usrdev2kerndev(3stap)
• stap(1)
• stapprobes(3stap)

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SystemTap Tapset Reference · September 2026 · TAPSET::DEV(3stap)

and that's the whole page, mwah 💋 thanks for reading my little tapset Ted Talk, go forth and decode those device numbers bestie 🦋💜