acpi_subsys_suspend_late(9)

🌸 NAME 🌸

okay so this is acpi_subsys_suspend_late(9) from the Kernel API Manual, and it’s literally about suspending a device using ACPI. Periodt. 💅

✨ SYNOPSIS ✨

int acpi_subsys_suspend_late (struct device *dev );

🎀 ARGUMENTS 🎀

• dev — the device to suspend. That’s the whole assignment, bestie. 🫶

💖 DESCRIPTION 💖

So this one carries out the generic late suspend procedure for dev, and then it uses ACPI to put that device into a low-power state while the system is transitioning into a sleep state. It’s giving “late-stage glow-down, but make it sleep-state.” 🔥

🦋 SEE ALSO 🦋

• Kernel file: ./drivers/acpi/device_pm.c
• The whole related-page squad: 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_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)

k bye bestie, signing off from ./drivers/acpi, October 2026 — stay cozy and low-power 💤✨