update_devfreq(9)

💅 update_devfreq(9) — like, the Kernel API Manual but make it make sense 🎀

okay so bestie, welcome to update_devfreq from the Kernel API Manual — this is the little function that looks at your device again and sets its frequency. Re-evaluate + configure, that's the whole vibe check. ✨

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🌸 NAME 🌸

update_devfreq — reevaluate the device and configure frequency. like, go look at the device again and set the freq accordingly. that's it, that's the job. 💖

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🦋 SYNOPSIS 🦋

int update_devfreq (struct devfreq *devfreq );

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⭐ ARGUMENTS ⭐

• devfreq — the devfreq instance. the actual device object you're passing in, the main character of this whole operation 👑

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🔥 NOTE 🔥

⚠️ bestie. lock devfreq->lock before calling update_devfreq. no cap, do it first. 🔒

Also important: this function is exported for governors — so it's out here living its public life for the governor code to use. 👑

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🌈 SEE ALSO 🌈

Kernel file ./drivers/devfreq/devfreq.c 😌 and like, the entire devfreq extended universe, fr fr:

• find_device_devfreq(9)
• devfreq_get_freq_range(9)
• devfreq_get_freq_level(9)
• devfreq_update_status(9)
• find_devfreq_governor(9)
• try_then_request_governor(9)
• devfreq_update_target(9)
• devfreq_monitor(9)
• devfreq_monitor_start(9)
• devfreq_monitor_stop(9)
• devfreq_monitor_suspend(9)
• devfreq_monitor_resume(9)
• devfreq_update_interval(9)
• devfreq_notifier_call(9)
• qos_notifier_call(9)
• qos_min_notifier_call(9)
• qos_max_notifier_call(9)
• devfreq_dev_release(9)
• devfreq_add_device(9)
• devfreq_remove_device(9)
• devm_devfreq_add_device(9)
• devm_devfreq_remove_device(9)
• devfreq_suspend_device(9)
• devfreq_resume_device(9)
• devfreq_suspend(9)
• devfreq_resume(9)
• devfreq_add_governor(9)
• devm_devfreq_add_governor(9)
• devfreq_remove_governor(9)
• devfreq_summary_show(9)
• devfreq_recommended_opp(9)
• devfreq_register_opp_notifier(9)
• devfreq_unregister_opp_notifier(9)
• devm_devfreq_register_opp_notifier(9)
• devm_devfreq_unregister_opp_notifier(9)
• devfreq_register_notifier(9)
• devm_devfreq_register_notifier(9)
• devm_devfreq_unregister_notifier(9)

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that's the whole page bestie, ate and left no crumbs 🫶

this lil masterpiece lives in ./drivers/devfreq, dated October 2026 — go off, kernel docs, periodt 💜🧚