devfreq_add_device(9)

💅 devfreq_add_device(9) — Kernel API Manual, but make it make sense

okay so bestie, welcome to the devfreq_add_device(9) page 💖 this is from the Kernel API Manual and it's literally the moment you give a device main character energy by bolting the whole devfreq feature onto it. no cap, it's a glow-up for your hardware 🔥

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✨ NAME ✨

devfreq_add_device — Add devfreq feature to the device 🫶

like, that's the whole vibe. you have a device. it does not have devfreq. you fix that. iconic.

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🌸 SYNOPSIS 🌸

struct devfreq * devfreq_add_device (struct device *dev , struct
       devfreq_dev_profile *profile , const char *governor_name , void *data );

it returns a struct devfreq * btw — that's your shiny new handle, don't lose it 💀

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🦋 ARGUMENTS 🦋

• dev — the device you're adding the devfreq feature to. yes, that one. your fave. give it the gift of frequency scaling ✨
• profile — the device-specific profile that devfreq is gonna run. it's like the device's personal instruction manual, tailor-made 🎀
• governor_name — the name of the policy that chooses the frequency. literally the vibe-picker for how fast your device clocks. choose wisely bestie 👑
• data — stuff the devfreq driver passes on to the governors. and heads up: the governor should not change it. like, hands off, no touchy 🙈 that's the rule.

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👑 SEE ALSO 👑

so there's a lot of friends in this friend group, all living in the kernel file ./drivers/devfreq/devfreq.c. go say hi 💜

• 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)
• update_devfreq(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_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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lowkey go read them all, they're all in ./drivers/devfreq and they all ate 💅

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and that's the page bestie!! 🌈 this lil delight came out of ./drivers/devfreq and it's dated October 2026 — so like, future-core fr fr. anyway mwah, go add some devfreq to something, you've got this 💖🎀🧚