event_trigger_init(9)

📦 version 7.3.1, in nixpkgs unstable

💖 event_trigger_init(9) — like, the Kernel API Manual page, bestie 💖

okay so before we even start — this whole thing lives in the Kernel API Manual, which is basically the group chat where kernel devs leave notes for each other. and this one? this one is short and sweet and lowkey iconic. let's go 🫶

✨ NAME ✨

event_trigger_init — the Generic event_command @init implementation. that's it, that's the whole vibe 💅

🎀 SYNOPSIS 🎀

int event_trigger_init (struct event_trigger_data *data );

🦋 ARGUMENTS 🦋

  • data — the trigger-specific data. it's the trigger's own little bag of stuff, bestie, and it gets handed over fresh 🌸

💜 DESCRIPTION 💜

so this is the common implementation of event trigger initialization — the shared, ready-to-go version that everybody uses instead of writing their own from scratch. not me saving you from reinventing initialization 😭

and usually? it's used directly as the init method in event trigger implementations. like, no wrapper, no extra steps, you just point at it and go. it's giving "main character energy" but make it a function pointer ✨

👑 RETURN 👑

  • 0 — success, slay, we ate 💅
  • errno — otherwise. yes, it's returning an errno, that's not a typo, that's just the way it is ngl 🙈
no cap: the success value is literally 0, and anything not-0 is an errno situation. check your return values, bestie, i'm begging 🥺

🌈 SEE ALSO 🌈

the kernel file that started it all:

  • ./kernel/trace/trace_events_trigger.c

and the whole trigger-related friend group, fr fr — every single one, alphabet-ish, no one left out:

and that's the whole page, bestie — short, useful, a little bit perfect 🧚💜

cute little sign-off: this one shipped from ./kernel/trace in the October 2026 version drop, filed under event_trigger_init(9) — go read the neighbours, they're all in SEE ALSO anyway 💖✨

📦 where this page comes from