dwc3_gadget_init(9)

📦 version 7.3.1, in nixpkgs unstable

💜 dwc3_gadget_init(9) — like, the Kernel API Manual page you actually wanna read

okay so bestie, welcome to dwc3_gadget_init(9) from the Kernel API Manual ✨ — this is the page where our DWC3 controller gets told "hey girl, you're a gadget now 💅".

🦋 NAME

dwc3_gadget_init — Initialize gadget mode operation 🎀

🌸 SYNOPSIS

int dwc3_gadget_init (struct dwc3 *dwc );

⭐ ARGUMENTS

  • dwc — Pointer to DWC3 controller context 🫶 (like, the whole vibe of your controller lives in here)

🔥 DESCRIPTION

So here's the tea ☕: this function initializes the controller for USB gadget mode operation. Usually that's dwc3_core_probe doing it, or it happens from within the dwc3 USB role switch callback. No cap.

But this function exists for a very specific situation — it's provided for platforms that use skip_core_init_mode and need to finalize the gadget initialization after some platform-specific setup. iykyk 😌

⚠️ okay queen, listen — the rules here are not optional: - It must not be called before dwc3_core_init. - It must not be called when skip_core_init_mode is not used. - It must also not be called when gadget or host mode has already been initialized.

literally do not skip this part, it's giving "undefined behaviour energy" and we don't want that for you 💀

👑 RETURN

  • 0 on success ✨
  • negative error code on failure 😭

🌈 SEE ALSO

Kernel file ./drivers/usb/dwc3/glue.h — and the whole friend group:

and that's the whole page, bestie 🧚💖 — sourced straight from ./drivers/usb/dwc3, dated October 2026, filed under dwc3_gadget_init(9). slay, go init that gadget 💅✨

📦 where this page comes from