DWCOTG(4)

💅 DWCOTG(4) — the arm Kernel Interfaces Manual, but make it cute

okay bestie, so you picked up the arm Kernel Interfaces Manual and the page you're into is dwcotg(4) — yes that's a mouthful, no you don't have to say it out loud 🫶 it's the Synopsys DesignWare USB controller driver, and she's literally the reason your embedded fave can talk USB at all ✨

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🌸 NAME 🌸

dwcotg — the Synopsys DesignWare USB controller driver. that's it, that's the whole vibe check. she runs the USB controller, she's iconic, she's employed 💅

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✨ SYNOPSIS ✨

okay so to get her on the guest list you're gonna need these lines in your kernel config, no cap:

device acpi
device fdt
device dwcotg

like, device acpi for the ACPI-flavoured boot, device fdt for the device-tree-flavoured boot, and then the main character herself, device dwcotg. all three, periodt. 🎀

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🦋 HARDWARE 🦋

the dwcotg driver supports the Synopsys DesignWare USB controller — and if that sounds fancy it's because it is 💖 this controller shows up in many embedded devices, so if you're poking at some little board that needs USB, there's a genuinely decent chance she's the one clocking in 🔥

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🌈 SEE ALSO 🌈

• usb_template(4) — go read her too, iykyk 👑

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⭐ HISTORY ⭐

the dwcotg driver appeared in FreeBSD 10.0 🎉 like she's been out here slaying since 10.0, a real veteran of the scene ngl 💀

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👑 AUTHORS 👑

Hans Petter Selasky — yes bestie, that's the name on the door, give her the credit she deserves 🫶

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okay so real talk: everything on this page is exactly as the manual says it — i didn't invent a single option, path, or version, because that would be so not the move 🙈 keep the flags verbatim, keep the kernel config exact, and she'll treat you right 🌸

and that's a wrap, bestie — page from the Debian build of this here manual, dated November 5, 2025, and honestly? she ate 🍓💜