acpi_device_sleep_wake(9)

💤 acpi_device_sleep_wake(9) 💤

okay so bestie, welcome to acpi_device_sleep_wake — it's a Kernel API Manual page, section 9, and it's literally all about poking your device's sleep/wake vibes into place. let's go 🫶

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✨ NAME ✨

acpi_device_sleep_wake — executes _DSW (Device Sleep Wake), or the lowkey deprecated-in-ACPI-3.0 _PSW (Power State Wake). that's the whole mission, no cap 💅

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🌸 SYNOPSIS 🌸

int acpi_device_sleep_wake (struct acpi_device *dev , int enable , int
sleep_state , int dev_state );

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🎀 ARGUMENTS 🎀

• dev — the device you're handling. the main character of this whole function, fr.
• enable — 0 disables, 1 enables the wake capabilities of the device. simple as that, bestie. ✨
• sleep_state — the target sleep state of the system. iykyk.
• dev_state — the target power state of the device. 🦋

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💜 DESCRIPTION 💜

so what it does is: it executes _DSW (Device Sleep Wake) — or _PSW (Power State Wake), which is deprecated in ACPI 3.0, just so we're clear 🫶 — for the device, if present.

⚠️ if it fails, it resets the device's wakeup.flags.valid flag. like, resets it to invalid. that's the cleanup, no notes.

🌙 RETURN VALUE 🌙

• 0 — if either _DSW or _PSW has been successfully executed
• 0 — if neither _DSW nor _PSW has been found (yes, also zero, that's not a typo, that's the manpage 💀)
• -ENODEV — if the execution of either _DSW or _PSW has failed 😭

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🔥 SEE ALSO 🔥

• kernel file ./drivers/acpi/power.c — that's where the magic lives
• acpi_device_power_add_dependent(9)
• acpi_device_power_remove_dependent(9)
• acpi_turn_off_unused_power_resources(9)

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🧚 and that's the page! go forth and wake your devices responsibly, bestie 💖

source: ./drivers/acpi — dated October 2026 — the whole thing is filed under acpi_device_sleep_wake(9), periodt. 👑