OW(4)

📦
version 15.1 · 3 versions
, in freebsd 14.5, freebsd 15.1

💅 OW(4) — the Dallas Semiconductor 1-Wire bus, but make it a vibe

okay so real talk, this is section 4 of the Kernel Interfaces Manual (that's the manual name, bestie, we're in the kernel interfaces club now 🎀) and it's all about the ow driver. buckle up.

✨ SYNOPSIS ✨

device ow

that's it. one line. iconic behavior honestly 👑

🦋 DESCRIPTION 🦋

so the ow module is literally the implementation of the Dallas Semiconductor 1-Wire bus 💖 no cap.

it attaches to the owc(4) driver — and that's the one that handles all the low-level signaling of the 1-Wire bus. so like, owc(4) is down there doing the actual wire-level talking, and ow is the module sitting on top of it. teamwork. main character energy from both tbh 🌈

🌸 SEE ALSO 🌸

go read those too, iykyk 🫶

1-Wire is a registered trademark of Maxim Integrated Products, Inc.

(yeah bestie, trademark, don't come for me 💀)

⭐ HISTORY ⭐

the ow driver first appeared in FreeBSD 11.0. vintage. a classic. we stan a driver with lore 🔥

👑 AUTHORS 👑

the ow device driver and this manual page were written by Warner Losh. both of them! one person! we love a multitasking icon 💜

OW(4) came to you straight out of the Debian build of the page, dated July 20, 2015 — yes that's the source/version and date, go off calendar queen 😭🌸

that's the whole page, ily, go plug in a 1-Wire device or whatever 💅✨

📦 where this page comes from