BCMMBOX(4)

💌 BCMMBOX(4) — the Kernel Interfaces Manual, bestie edition ✨

okay so picture this: it's BCMMBOX(4), it lives in the Kernel Interfaces Manual, and it's about mailboxes. not the cute wooden ones with a little flag, but still iconic. we're talking Broadcom BCM283x VideoCore Mailboxes 🎀

🌸 NAME 🌸

bcmmbox — Broadcom BCM283x VideoCore Mailboxes 💖

like, that's the whole name. short, sweet, and it tells you exactly what's in the box. literally.

---

✨ SYNOPSIS ✨

bcmmbox* at fdt?

that's it. that's the whole vibe check. it attaches at fdt? and honestly? slay. 🦋

---

👑 DESCRIPTION 👑

so the bcmmbox driver is the one handling communication with the VideoCore on the Broadcom BCM2835, BCM2836 and BCM2837 SoCs. no cap. that's its whole job, and it does it. 💅

basically it's the group chat between the kernel and the VideoCore, and the driver is the one actually keeping up with the messages. main character energy fr fr. 🫶

---

🦋 SEE ALSO 🦋

• intro(4) — go read it, bestie. it's giving "start here" energy. ⭐

---

🌈 HISTORY 🌈

the bcmmbox driver first appeared in OpenBSD 6.7. a whole era. we respect the timeline. 👑

---

💜 AUTHORS 💜

the bcmmbox driver was written by these two absolute legends:

• Neil Ashford <ashfordneil0@gmail.com>
• Tobias Heider <tobhe@openbsd.org>

two icons, one driver. we love to see it. 😭💖

---

ok real talk for a sec: this page is from the Debian crew, dated April 19, 2020. so if you ever needed to cite your sources for your "bcmmbox is iconic" essay — there you go, that's your receipt. ✨🧚

and that's the whole page, bestie. no notes. periodt. 💅🌸