dwc3_host_exit(9)

📦 version 7.3.1, in nixpkgs unstable

💅 dwc3_host_exit — bestie, we're closing the host shop

okay so real talk, this one lives in the Kernel API Manual and it's genuinely so straightforward you're gonna slay it. It's called dwc3_host_exit, and no cap, the name is basically the whole plot: it shuts down host mode operation. That's it. That's the vibe. 🦋

✨ SYNOPSIS ✨

void dwc3_host_exit (struct dwc3 *dwc );

like, that's the whole signature. void return — nothing comes back, she just does her thing and leaves. periodt. 💅

🎀 ARGUMENTS 🎀

  • dwc — pointer to the DWC3 controller context 🌸 — literally just the controller's little context struct, that's who we're cleaning up after.

🧚 DESCRIPTION 🧚

okay so picture this: host mode had its whole moment, its main character era, and now it's time to wrap it up. dwc3_host_exit disables and cleans up host mode resources. Cleanup queen behavior. 🧹✨

Usually this happens courtesy of the dwc3 USB role switch callback — she calls it before switching the controller mode, so everything's tidy before the next vibe check. 🔥

⚠️ but bestie, listen, this part is important and I need you to actually read it: it must only be called when skip_core_init_mode is used, and only after dwc3_host_init. Not before. Not whenever you feel like it. Those are the rules, and the rules are not optional, fr fr. 😭

👑 SEE ALSO 👑

Kernel file ./drivers/usb/dwc3/glue.h, plus the whole friend group:

k bye ily, go read the source at ./drivers/usb/dwc3 — this icon of a page is dated October 2026 and shipped under the Kernel API Manual umbrella 🫶💜

📦 where this page comes from