idle_inject_set_duration(9)

💅 idle_inject_set_duration(9) — the Kernel API Manual, bestie edition 🎀

okay so this is idle_inject_set_duration, straight out of the kernel API manual, and she's a little helper for updating the idle duration and run duration on an idle injection device. yes that's a lot of words. we'll get through it together 🫶

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✨ NAME ✨

idle_inject_set_duration — the idle-and-run-duration update helper, no cap ✨

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🌸 SYNOPSIS 🌸

void idle_inject_set_duration (struct idle_inject_device *ii_dev ,
unsigned int run_duration_us , unsigned int idle_duration_us );

she takes three things and returns nothing (void, iconic, doesn't need to report back 💅). note the literal spacing in there, we're copying it exactly, character for character, fr fr.

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🦋 ARGUMENTS 🦋

• ii_dev — the idle injection control device structure. this is your main character, the thing you're tweaking 💖
• run_duration_us — the CPU run time to allow, measured in microseconds. so like, how long the CPU gets to actually cook 🔥
• idle_duration_us — the CPU idle time to inject, also in microseconds. this is the forced lil nap 😴

lowkey the easiest way to remember it: run first, idle second. microseconds for both. don't mix them up ngl 🫶

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🌈 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_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_full(9)
• idle_inject_register(9)
• idle_inject_unregister(9)

like, the whole friend group 🧚 go read idle_inject_get_duration(9) if you want the read-only bestie version, and idle_inject_set_latency(9) if latency is more your vibe 💜

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that's the whole page bestie, she's short and sweet 🍓 — brought to you from ./drivers/powercap, dated October 2026, in the Kernel API Manual, filed under idle_inject_set_duration(9). slay, go set some durations 💅✨