IEEE1394IF(4)

💖 IEEE1394IF(4) — the ieee1394if manual, bestie edition 💖

okay so this is the ieee1394if page from the Kernel Interfaces Manual, and we're gonna get into it because FireWire is genuinely iconic and you deserve to know her 💅

---

✨ NAME ✨

ieee1394if — IEEE1394 High-performance Serial Bus

🦋 SYNOPSIS 🦋

ieee1394if* at fwohci?

that's it, that's the whole vibe check. she attaches at fwohci? and she's ready 🎀

🌸 DESCRIPTION 🌸

so NetBSD provides machine-independent bus support and raw drivers for IEEE1394 interfaces. no cap, that's the whole point of her.

the ieee1394if driver is literally built from two layers: the controller and the bus layer. the controller attaches to a physical bus (like pci(4)). the ieee1394if bus attaches to the controller. and then, because she's generous, additional drivers can be attached to the bus too 🫶

up to 63 devices, including the host itself, can be attached to an IEEE1394 bus. yes bestie, the host counts too, she's part of the group chat.

the root node is dynamically assigned with a PHY device function. and the other IEEE1394 bus specific parameters — e.g., node ID, cycle master, isochronous resource manager and bus manager — are all dynamically assigned too, after bus reset is initiated. so like, everything gets sorted after the reset, it's giving main character energy honestly.

on the ieee1394if bus, every device is identified by an EUI 64 address. periodt. that's her government name 💅

🎀 FILES 🎀

• /dev/fw0.0
• /dev/fwmem0.0

those are the literal file paths, don't come for me, I just report them 💖

🔥 SEE ALSO 🔥

• fwip(4)
• fwohci(4)
• pci(4)
• sbp(4)
• fwctl(8)
• sysctl(8)

go read those too, iykyk 👑

🌈 HISTORY 🌈

the ieee1394if driver first appeared in FreeBSD 5.0, as firewire. then she got added to NetBSD 4.0 under her present name. a glow-up, honestly ✨

💜 AUTHORS 💜

the ieee1394if driver was written by Katsushi Kobayashi and Hidetoshi Shimokawa for the FreeBSD project. and it was added to NetBSD 4.0 by KIYOHARA Takashi. legends only 👑

💀 BUGS 💀

See fwohci(4) for security notes.

like, go check that one, it's important, don't skip it bestie 🙈

---

and that's the page!! this was from the Debian manual, dated June 18, 2005 — a little vintage moment but she ate 💅💖