idle_inject_register_full(9)

✨ NAME ✨

okay bestie, this is idle_inject_register_full(9) from the Kernel API Manual, and it's literally here to initialize idle injection on a set of CPUs. 💅💖

🌸 SYNOPSIS 🌸

struct idle_inject_device * idle_inject_register_full (struct cpumask
       *cpumask , bool (*update)(void) );

🎀 ARGUMENTS 🎀

• cpumask — the CPUs that are going to be affected by idle injection, periodt. 🦋
• update — this callback is called just before waking up CPUs to inject idle. 🌈

🦋 DESCRIPTION 🦋

This function creates an idle injection control device structure for the given set of CPUs and initializes the timer associated with it. It also allows you to register updatecallback. 🫶

heads up bestie: it does not start any injection cycles. not even one. 💀

👑 RETURN 👑

• NULL if memory allocation fails. 😭
• an idle injection control device pointer on success. 🎉

💜 SEE ALSO 💜

Kernel file: ./drivers/powercap/idle_inject.c

• struct idle_inject_thread(9)
• struct idle_inject_device(9)
• idle_inject_wakeup(9)
• idle_inject_timer_fn(9)
• idle_inject_fn(9)
• idle_inject_set_duration(9)
• idle_inject_get_duration(9)
• idle_inject_set_latency(9)
• idle_inject_start(9)
• idle_inject_stop(9)
• idle_inject_setup(9)
• idle_inject_should_run(9)
• idle_inject_register(9)
• idle_inject_unregister(9)

xoxo bestie, this iconic little page comes from source/version ./drivers/powercap, dated October 2026, and it's literally idle_inject_register_full(9). 🎀💅✨