cpuidle_play_dead(9)

💅 cpuidle_play_dead(9) — the Kernel API Manual, group-chat edition 🎀

okay so bestie, welcome to the cpuidle_play_dead page from the Kernel API Manual ✨ it's a lil one but she's iconic, let's get into it 💖

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🌸 NAME 🌸

cpuidle_play_dead — cpu off-lining 💀

Like, the function is literally named "play dead" and its whole personality is off-lining a cpu. Obsessed with the drama.

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✨ SYNOPSIS ✨

int cpuidle_play_dead (void );

she takes nothing, she returns an int. lowkey mysterious, highkey slay 🫶

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🦋 ARGUMENTS 🦋

• void — no arguments 🙈 bestie said "I need zero input, thank you" and honestly? valid.

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🎀 DESCRIPTION 🎀

Returns in case of an error or no driver 🧚

That's it. That's the whole description. She returns when there's an error, and she returns when there's no driver — no cap, no extra lore, no hidden side quests. Take it at face value, ikyk 💜

fr fr this is the entire behavioural description given — don't go inventing more, bestie 😭

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🔥 SEE ALSO 🔥

Kernel file ./drivers/cpuidle/cpuidle.c — go read the source, it's giving main character energy 👑

and the whole friend group of sibling functions, all (9) man pages, all iconic:

• 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_device(9)
• cpuidle_unregister(9)
• cpuidle_register(9)
• cpuidle_init(9)

like, the whole cpuidle cinematic universe is right there 💅🌸

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and that's the page, bestie!! 🎀✨ straight from ./drivers/cpuidle, dated October 2026, version vibes and all 🌈 thank you for coming to my ted talk, go forth and off-line cpus responsibly 💖🦋💜