ABTN(4)

📦 version 15.1, in freebsd 14.5, freebsd 15.1

💖 ABTN(4) 💖 — ADB Keyboard Special Keys Driver (but make it cute ✨)

okay so bestie, welcome to the abtn driver glow-up 💅 this whole page is from the powerpc Kernel Interfaces Manual and it's lowkey iconic for anyone with an old Apple notebook. periodt.

🌸 NAME 🌸

abtn — ADB Keyboard Special Keys Driver (yes that's the whole name, no cap)

🎀 SYNOPSIS 🎀

to compile this driver into the kernel (iykyk), you gotta drop these lines into your kernel config file, bestie:

device adb

🦋 DESCRIPTION 🦋

so the abtn driver is literally the hype squad for the extended Fn keys on Apple notebooks with an ADB interface. it provides support for those special keys, and we stan. 💖

🔥 HARDWARE 🔥

vibe check passed for these devices — the abtn driver supports extended keyboard keys (aka special F-keys) on them:

  • Apple iBook Keyboard
  • Apple PowerBook Keyboard

👑 EVENTS 👑

the abtn driver sends events to devd(8) for these iconic moments under the PMU system and the keys subsystem, okay?

  • brightness — generates up and down notify types matching the pressed key. (yes it's that girl ✨)
  • mute — (she's quiet but powerful 🙈)
  • volume — generates up and down notify types matching the pressed key. (turn it up! 🔊)
  • eject — (goodbye bestie 👋)

examples are included in /etc/devd/apple.conf — go look, it's a whole mood.

🌈 SEE ALSO 🌈

⭐ HISTORY ⭐

the abtn device driver first appeared in NetBSD 5.0 (OG debut, fr fr) and was ported to FreeBSD 10.0. the way that timeline ate, honestly.

💜 AUTHORS 💜

the abtn driver was written by Tsubai Masanari for NetBSD and ported to FreeBSD by Justin Hibbits. we love a collab that slaps. 🫶

this whole page was brought to you by the Debian crew, dated October 16, 2011, and it's literally ABTN(4) if you need to cite it. stay slay, bestie. 💅✨

📦 where this page comes from