component_add(9)

💫 component_add(9) — the Kernel API Manual glow-up 💫

okay so bestie, welcome to component_add(9), straight out of the Kernel API Manual. this one's short but she's mighty, and she's literally the "hey king, you're part of the team now" function 🫶

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✨ SYNOPSIS ✨

int component_add (struct device *dev , const struct component_ops *ops
);

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🎀 ARGUMENTS 🎀

• dev — the component device 💻 like, the device that's gonna be the component.
• ops — the component callbacks 🎯 the function pointers that'll get called later, iykyk.

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🌸 DESCRIPTION 🌸

So what does she do? component_add registers a brand new component for dev. that's it, that's the vibe ✨

the functions inside ops? they don't run right away, ngl. they get called when the aggregate driver is ready to bind the overall driver by calling component_bind_all. so it's giving "wait for your cue" energy 💅 see also struct component_ops if you wanna peek at the shape of those callbacks.

⚠️ important, bestie: the component needs to be unregistered at driver unload/disconnect by calling component_del. do not forget this. not me reminding you. i am reminding you 😭

also, heads up — see also component_add_typed for a variant that allows multiple different components on the same device. so if you've got a whole squad of components on one device, that's your girl 👑

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🦋 SEE ALSO 🦋

• Kernel file ./drivers/base/component.c overview(9) 🌈
• component_compare_of(9)
• component_release_of(9)
• component_compare_dev(9)
• component_compare_dev_name(9)
• component_match_add_release(9)
• component_match_add_typed(9)
• component_master_add_with_match(9)
• component_master_del(9)
• component_unbind_all(9)
• component_bind_all(9)
• component_add_typed(9)
• component_del(9)

like, go read all of them, they're all iconic, no cap 🔥

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and that's the whole page, bestie 💖 this little gem lives over in ./drivers/base and it was dated October 2026 — slay, periodt. go register your components responsibly 👑✨