devm_extcon_dev_register(9)

🦋 NAME 🦋

okay so this is devm_extcon_dev_register — bestie, it's literally the Resource-managed extcon_dev_register() 💅 and yes we're in the Kernel API Manual, buckle up 🎀

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✨ SYNOPSIS ✨

int devm_extcon_dev_register (struct device *dev , struct extcon_dev
*edev );

like, that's the whole signature, no cap 🌸

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🫶 ARGUMENTS 🫶

• dev — the device that owns the extcon device being created 👑 it's giving main character energy, it's the parent
• edev — the extcon device that's getting registered, the actual star of the show ⭐

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💖 DESCRIPTION 💖

so the whole vibe of this function is: once you register with it, that extcon device gets automatically unregistered on driver detach ✨ like it cleans up after itself, obsessed 🧹💅

internally? it just calls extcon_dev_register — fr fr that's the real one doing the work. so if you want more info, go refer to that function, iykyk 📖

hmm okay important one 🙈 — if the extcon device was registered with this function and you still need to unregister it separately, you should use devm_extcon_dev_unregister. don't just yolo it, bestie 💀

and the return? Returns 0 if success, or a negative error number if failure 😭 so like, check your return values, please, for me 🫶

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/extcon/devres.c 📁 (yes the whole file, go read it)
• devm_extcon_dev_allocate(9)
• devm_extcon_dev_free(9)
• devm_extcon_dev_unregister(9)
• devm_extcon_register_notifier(9)
• devm_extcon_unregister_notifier(9)
• devm_extcon_register_notifier_all(9)
• devm_extcon_unregister_notifier_all(9)

like a whole friend group of devm extcon functions, love that for them 👯‍♀️💜

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aaaand that's the page!! 🌸 this one lives in ./drivers/extcon, dated October 2026, and the page itself is devm_extcon_dev_register(9) — mwah, slay, periodt 💋🔥