dwc3_core_init(9)

📦 version 7.3.1, in nixpkgs unstable

💅 dwc3_core_init(9) — like, the Kernel API Manual, but make it make sense

okay so bestie, welcome to the dwc3_core_init page from the Kernel API Manual — yes, the actual manual, section 9, and no cap this is the one that wakes up your DWC3 core hardware. grab a strawberry drink 🍓, we're getting into it.

✨ NAME ✨

dwc3_core_init — initialize the DWC3 core hardware, periodt.

🌸 SYNOPSIS 🌸

int dwc3_core_init (struct dwc3 *dwc );

like, that's it. one function, one pointer, one int coming back at you.

🎀 ARGUMENTS 🎀

  • dwc — pointer to the DWC3 controller context. that's the whole vibe check right there, she's the main character struct 💅

🦋 DESCRIPTION 🦋

so what does she do? she configures and initializes the core hardware — the actual heavy lifting, the glow-up of the silicon ✨. this is usually done by dwc3_core_probe.

but here's the tea 🍵: this function exists specifically for platforms that use skip_core_init_mode and need to finalize the core initialization after some platform-specific setup has already happened. like, they skipped the first part, so now they circle back.

⚠️ and listen — she must only be called when you're using skip_core_init_mode, and she must be called before dwc3_host_init or dwc3_gadget_init. not after. not "eh, close enough." before. iykyk 🙈

🔥 RETURN 🔥

  • 0 on success — slay, we love a clean return 💖
  • a negative error code on failure — she's telling you something went wrong, don't ignore her 😭

👑 SEE ALSO 👑

kernel file ./drivers/usb/dwc3/glue.h and honestly the whole friend group:

that's the whole page bestie, go init some core hardware responsibly 🧚‍♀️✨

sign-off szn: this iconic little page lives in ./drivers/usb/dwc3, dated October 2026, and it's the dwc3_core_init(9) entry from the Kernel API Manual. mwah 💜

📦 where this page comes from