cpu_pm_register_notifier(9)

✨ NAME ✨

Okay so bestie, welcome to cpu_pm_register_notifier(9), fresh from the Kernel API Manual — it's literally the function for registering a driver with cpu_pm, and the group chat is thriving. 💅

🛠️ SYNOPSIS 🛠️

int cpu_pm_register_notifier (struct notifier_block *nb );

🎀 ARGUMENTS 🎀

• nb — the notifier block to register, bestie. That's the struct notifier_block * hanging out in the synopsis; it's the thing getting signed up. 🫶

🔥 DESCRIPTION 🔥

So what does it do? It adds a driver to a list of drivers that are notified about CPU and CPU cluster low power entry and exit. That's the whole vibe: CPU and CPU cluster low power entry and exit, notifications included. ⚡

Return conditions? This function has the same return conditions as raw_notifier_chain_register — like, identical return conditions, no cap. 😌

🦋 SEE ALSO 🦋

• Kernel file ./kernel/cpu_pm.c
• cpu_pm_unregister_notifier(9)
• cpu_pm_enter(9)
• cpu_pm_exit(9)
• cpu_cluster_pm_enter(9)
• cpu_cluster_pm_exit(9)

Brought to you by the source ./kernel and the date October 2026 — mwah, kisses, and happy notifier registering 💋🎀