acpi_dev_suspend(9)

💅 acpi_dev_suspend — Kernel API Manual, section 9

okay so bestie, welcome to the Kernel API Manual, section 9, and today's main character is acpi_dev_suspend. she's the one who puts your device to sleep the official ACPI way, and honestly? iconic. let's get into it 💤✨

---

✨ NAME ✨

acpi_dev_suspend — put a device into a low-power state using ACPI. no cap, that's literally her whole job 🎀

---

🌸 SYNOPSIS 🌸

int acpi_dev_suspend (struct device *dev , bool wakeup );

---

🦋 ARGUMENTS 🦋

• dev — the device you're putting into a low-power state. she's the one going night-night 💤
• wakeup — whether or not to enable wakeup for the device. yes-or-no energy, very bool of her 🫶

---

💜 DESCRIPTION 💜

so here's the vibe: you take the given device and you put it into a low-power state using the standard ACPI mechanism. that's the whole flex 🔥

the steps, in order, because she's organized:

1. set up remote wakeup if that's what you want (wakeup says so).
2. choose the state to put the device into — and heads up, this step also checks whether remote wakeup is expected to work 👀
3. set the power state of the device. done. slay.

---

💖 SEE ALSO 💖

kernel file: ./drivers/acpi/device_pm.c — that's where she lives 🏠

and because she does NOT gatekeep her friends, here's the whole group chat, all in section 9:

• acpi_power_state_string(9)
• acpi_device_get_power(9)
• acpi_device_set_power(9)
• acpi_device_fix_up_power(9)
• acpi_device_fix_up_power_extended(9)
• acpi_device_fix_up_power_children(9)
• acpi_dev_power_up_children_with_adr(9)
• acpi_dev_power_state_for_wake(9)
• acpi_add_pm_notifier(9)
• acpi_remove_pm_notifier(9)
• acpi_dev_pm_get_state(9)
• acpi_pm_device_sleep_state(9)
• acpi_pm_notify_work_func(9)
• acpi_device_wakeup_enable(9)
• acpi_device_wakeup_disable(9)
• acpi_pm_set_device_wakeup(9)
• acpi_dev_pm_low_power(9)
• acpi_dev_pm_full_power(9)
• acpi_dev_resume(9)
• acpi_subsys_runtime_suspend(9)
• acpi_subsys_runtime_resume(9)
• acpi_subsys_prepare(9)
• acpi_subsys_complete(9)
• acpi_subsys_suspend(9)
• acpi_subsys_suspend_late(9)
• acpi_subsys_suspend_noirq(9)
• acpi_subsys_resume_noirq(9)
• acpi_subsys_resume_early(9)
• acpi_subsys_resume(9)
• acpi_subsys_freeze(9)
• acpi_subsys_restore_early(9)
• acpi_subsys_poweroff(9)
• acpi_subsys_poweroff_late(9)
• acpi_subsys_poweroff_noirq(9)
• acpi_dev_pm_detach(9)
• acpi_dev_pm_attach(9)
• acpi_storage_d3(9)
• acpi_dev_state_d0(9)

like, that's the whole friend group. say hi to all of them or whatever 💅

---

mwah, that's the page 🫶 this one comes from ./drivers/acpi, version stamped October 2026, and it's filed under acpi_dev_suspend(9) — go take a nap, you earned it 💤💖