ACPI_ASUS_WMI(4)

🌸 ACPI_ASUS_WMI 🌸

okay so bestie, this is the acpi_asus_wmi man page — it's a FreeBSD kernel interfaces manual page (4) and it's literally all about the Asus Laptop WMI Extras 💅 like if you have an Asus laptop and you're wondering where your fancy extra buttons went, this is the doc for you. let's get into it ✨

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✨ NAME ✨

acpi_asus_wmi — Asus Laptop WMI Extras 🫶

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🎀 SYNOPSIS 🎀

so there are two ways to get this driver into your life. pick your fighter:

Option 1 — bake it right into the kernel. drop this line into your kernel configuration file:

device acpi_asus_wmi

Option 2 — load it as a module at boot time. then stick this line in loader.conf(5):

acpi_asus_wmi_load="YES"

both work, both slay 💖

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🦋 DESCRIPTION 🦋

the acpi_asus_wmi driver is the main character for all the extra WMI-controlled gadgets you find on Asus laptops — we're talking hotkeys and leds, the whole vibe 🔥

here's what it lets you do:

• use the sysctl(8) interface to manipulate the brightness of the LCD panel and the keyboard backlight ✨
• power on/off different internal components — like WiFi, Bluetooth, camera, cardreader, etc. 💅
• read some sensors 👑

and the hotkey events? those get passed to devd(8) so you can handle them easy-peasy in userspace with the default config in /etc/devd/asus.conf. literally so convenient 😭

ngl though, some hotkey events are handled inside the driver itself — specifically keyboard backlight and touchpad control. those ones don't need you, they got it 🫶

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💜 SYSCTL VARIABLES 💜

these are the sysctls currently implemented (yes, currently — iconic of them to say):

• dev.acpi_asus_wmi.0.handle_keys — specifies whether the driver should handle some hardware keys, such as keyboard backlight, internally ✨

and the tea is: there are a number of other variables under the same sysctl branch and they're all model-specific — so what you get depends on your laptop, iykyk 👑

defaults for these variables can be set in sysctl.conf(5), which gets parsed at boot-time 🌈

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🍓 FILES 🍓

• /dev/backlight/acpi_asus_wmi0 — Keyboard backlight(8) device node 🎀

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🌟 SEE ALSO 🌟

acpi(4), acpi_asus(4), acpi_video(4), sysctl.conf(5), backlight(8), devd(8), sysctl(8)

go read the friends, they're all part of the squad 💖✨

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🌈 HISTORY 🌈

the acpi_asus_wmi driver first appeared in FreeBSD 10.0 — a true OG 🫶

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👑 AUTHORS 👑

Alexander Motin <mav@FreeBSD.org> — thank you king 💅

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💀 quick vibe check reminder: this page is from the Debian manual, dated March 25, 2024 — so if you're citing it, that's the source and the date, no cap 😌🦋

and that's the whole page bestie, you ate that 🎀✨ go forth and toggle your keyboard backlight 💜