cpuidle_unregister_device(9)

💅 cpuidle_unregister_device — a Kernel API Manual moment ✨

okay so bestie, welcome to the Kernel API Manual — this is the page for cpuidle_unregister_device, and it's literally the breakup page for a CPU's idle power-management era. no cap, that's the whole vibe. 🎀

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🌸 NAME 🌸

cpuidle_unregister_device — unregisters a CPU's idle PM feature

like. it takes the idle PM feature off the guest list. periodt. 🫶

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✨ SYNOPSIS ✨

void cpuidle_unregister_device (struct cpuidle_device *dev );

that's it. that's the whole signature. returns void, so don't go looking for a return value, she gives you nothing back and she's iconic for it 💅

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🦋 ARGUMENTS 🦋

• dev — the cpu

(that's the original one-liner and we're keeping it exactly, but just so we're clear: it's a struct cpuidle_device * and it is, in fact, the cpu 😭)

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👑 SEE ALSO 👑

the whole friend group, no one left out, fr fr:

• Kernel file ./drivers/cpuidle/cpuidle.c
• cpuidle_play_dead(9)
• cpuidle_use_deepest_state(9)
• cpuidle_find_deepest_state(9)
• cpuidle_enter_s2idle(9)
• cpuidle_enter_state(9)
• cpuidle_select(9)
• cpuidle_enter(9)
• cpuidle_reflect(9)
• cpuidle_poll_time(9)
• cpuidle_install_idle_handler(9)
• cpuidle_uninstall_idle_handler(9)
• cpuidle_pause_and_lock(9)
• cpuidle_resume_and_unlock(9)
• cpuidle_enable_device(9)
• cpuidle_disable_device(9)
• __cpuidle_register_device(9)
• cpuidle_register_device(9)
• cpuidle_unregister(9)
• cpuidle_register(9)
• cpuidle_init(9)

go read them. all of them. iykyk 🌈

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kisses from the source tree, mwah 💖 — this one lives in ./drivers/cpuidle, dated October 2026, and she's serving cpuidle_unregister_device(9) realness till the end. 🧚‍♀️⭐🍓