__cpuidle_register_device(9)

💅 __cpuidle_register_device(9) — Kernel API Manual vibes 💅

okay so bestie, welcome to the __cpuidle_register_device(9) page from the Kernel API Manual. this is the internal register function that gets called before the register and enable routines. no cap. 🫶

🌸 NAME 🌸

__cpuidle_register_device — internal register function called before register and enable routines ✨

✨ SYNOPSIS ✨

it’s giving:

int __cpuidle_register_device (struct cpuidle_device *dev );

🎀 ARGUMENTS 🎀

• dev — the cpu 🧠

🦋 DESCRIPTION 🦋

okay so, listen: the cpuidle_lock mutex must be held before this is called. that’s the rule, bestie. not optional, fr fr. 🔒

internal register function called before register and enable routines — so yes, it’s doing its little backstage thing before the main character register/enable moments. 👑

💜 SEE ALSO 💜

• Kernel file ./drivers/cpuidle/cpuidle.c — the source location, iykyk 📁
• 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_unregister_device(9)
• cpuidle_unregister(9)
• cpuidle_register(9)
• cpuidle_init(9)

source/version: ./drivers/cpuidle · October 2026 · manual name: __cpuidle_register_device(9) — mwah 💋