acpi_subsys_poweroff_late(9)

💤 acpi_subsys_poweroff_late — Kernel API Manual, bestie edition ✨

okay so real talk, we're deep in the kernel API manual right now, like section 9 energy, and this page is literally about acpi_subsys_poweroff_late. yes it's a mouthful, no you don't have to say it out loud 💅

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🌙 NAME

acpi_subsys_poweroff_late — Run the device driver's poweroff callback.

like, that's it, that's the whole vibe: you're running the driver's poweroff callback 🫶

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✨ SYNOPSIS

int acpi_subsys_poweroff_late (struct device *dev );

it returns an int, bestie. note the space before that last paren, that's canon, don't come for me 😭

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🎀 ARGUMENTS

• dev — Device to handle. (the device in question, the main character of this function fr fr 💖)

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🦋 DESCRIPTION

So what actually happens? Carry out the generic late poweroff procedure for dev and use ACPI to put it into a low-power state during system transition into a sleep state. ✨

like, that's the whole thing. generic late poweroff procedure: run it. then ACPI swoops in and tucks the device into a low-power state while the system is transitioning into a sleep state. lowkey iconic behavior, ngl 🌸

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👑 SEE ALSO

okay this is the part where I list literally everyone in the group chat, no skipping, no cap 🔥

• Kernel file ./drivers/acpi/device_pm.c
• 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_suspend(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_noirq(9)
• acpi_dev_pm_detach(9)
• acpi_dev_pm_attach(9)
• acpi_storage_d3(9)
• acpi_dev_state_d0(9)

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and that's the page!! 💜 this whole thing lives over in ./drivers/acpi, and it's dated October 2026 — so yeah, future-coded manual page, we love to see it. mwah, go read the source, ily, bye 🧚🍓⭐