device_suspend(9)

💅 device_suspend(9) — like, the whole Kernel API Manual vibe

okay bestie, gather round, because this one is literally the page you want if you're tryna understand how a single device gets told "hey babe, go to sleep." yes this is the Kernel API Manual entry, and yes it's giving very much "small function, big job."

---

✨ NAME ✨

device_suspend — Execute "suspend" callbacks for given device.

like, for one device. not the whole system. one. device. 🎀

---

🌸 SYNOPSIS 🌸

void device_suspend (struct device *dev , pm_message_t state , bool
async );

not me obsessing over a three-argument function 😭 it's so clean.

---

🦋 ARGUMENTS 🦋

• dev — Device to handle. that's your main character right there, the device getting the suspend treatment 💖
• state — PM transition of the system being carried out. basically the vibe check for which power-management transition we're in the middle of.
• async — If true, the device is being suspended asynchronously. so it's doing the whole thing off to the side, not sitting in the front row waiting 🫶

---

🔥 SEE ALSO 🔥

okay so there's a lot of family here. like a whole friend group. the original points at Kernel file ./drivers/base/power/main.c and then these icons:

• pm_hibernate_is_recovering(9)
• device_pm_sleep_init(9)
• device_pm_lock(9)
• device_pm_unlock(9)
• device_pm_add(9)
• device_pm_remove(9)
• device_pm_move_before(9)
• device_pm_move_after(9)
• device_pm_move_last(9)
• dpm_wait(9)
• pm_op(9)
• pm_late_early_op(9)
• pm_noirq_op(9)
• dpm_watchdog_handler(9)
• dpm_watchdog_set(9)
• dpm_watchdog_clear(9)
• dev_pm_skip_resume(9)
• device_resume_noirq(9)
• dpm_resume_noirq(9)
• device_resume_early(9)
• dpm_resume_early(9)
• dpm_resume_start(9)
• device_resume(9)
• dpm_resume(9)
• device_complete(9)
• dpm_complete(9)
• dpm_resume_end(9)
• resume_event(9)
• device_suspend_noirq(9)
• dpm_suspend_noirq(9)
• device_suspend_late(9)
• dpm_suspend_late(9)
• dpm_suspend_end(9)
• legacy_suspend(9)
• dpm_suspend(9)
• device_prepare(9)
• dpm_prepare(9)
• dpm_suspend_start(9)
• device_pm_wait_for_dev(9)
• dpm_for_each_dev(9)

---

and that's the whole page, no cap ✨

this lil cutie lives in ./drivers/base/power, October 2026 edition, and the page itself is device_suspend(9) — go read the whole friend group, iykyk 💜🦋🌸