kobject_uevent(9)

🌸 kobject_uevent(9) 🌸

okay so bestie, welcome to the Kernel API Manual — this is kobject_uevent(9), and it's literally the little messenger that tells userspace something happened 👑✨

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✨ NAME ✨

kobject_uevent — notify userspace by sending an uevent 🎀

like, that's the whole job. it sends an uevent. userspace gets notified. slay 💅

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🦋 SYNOPSIS 🦋

int kobject_uevent (struct kobject *kobj , enum kobject_action action );

yep that's it, that's the whole call — two args, one int back, no cap 🫶

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💖 ARGUMENTS 💖

• kobj — the struct kobject that the action is happening to 🌟 like, the star of the show, the main character object this whole thing is about
• action — the action that is happening 💫 the vibe check of what just went down

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🔥 DESCRIPTION 🔥

so here's the tea: it returns 0 if kobject_uevent is completed with success 🎉 or, and this is the important part, the corresponding error when it fails 😭

bestie please actually check that return value. 0 means we ate, anything else means the corresponding error came through and you gotta deal with it 💀

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🌈 SEE ALSO 🌈

• Kernel file ./lib/kobject_uevent.c 📁 (yes, the source, go read it, it's giving lore)
• kobject_synth_uevent(9) ✨
• kobject_uevent_env(9) 🦋
• add_uevent_var(9) 🌸

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and that's the page, bestie!! no thoughts, just uevents 💜

sign-off time: this one lives in ./lib, it's dated October 2026, and it's filed under kobject_uevent(9) — periodt 🎀👑