usb_udc_release(9)

📦 version 7.3.1, in nixpkgs unstable

🎀 usb_udc_release(9) 🎀

okay so bestie, welcome to the Kernel API Manual — this one's a lil function page, short and sweet, but we're gonna treat it with the respect it deserves fr fr 💅

✨ NAME ✨

usb_udc_release — release the usb_udc struct

like... it's the cleanup girlie. the one who shows up at the end of the party and turns off the lights 🕯️

🌸 SYNOPSIS 🌸

void usb_udc_release (struct device *dev );

no cap, that's the whole signature. one argument, returns nothing. she's lowkey minimal 💖

🦋 ARGUMENTS 🦋

  • dev — the dev member within usb_udc. yes babes, the member inside it — not some random struct device you found on the street 🙈

⭐ DESCRIPTION ⭐

so here's the tea ☕: this gets called by the driver's core in order to free memory once the last reference is released.

that's it. that's the whole vibe. it's the memory-freeing moment, the final goodbye, the "reference count hit zero and now we clean up" arc 👑

genuinely iconic behaviour — nothing happens until that last reference is gone, and then it's over for real.

💜 SEE ALSO 💜

okay this list is long but every single one of these is part of the family, so let's give them all their moment 🫶

first up, the source file and the struct herself:

  • Kernel file ./drivers/usb/gadget/udc/core.c struct usb_udc(9)

then the endpoint girlies 💫:

then the gadget crew 🔥:

and the UDC squad at the end, main character energy all around 👑:

fr fr, that's a whole group chat worth of references 💀

mwah 💋 that's the page! this one lives in ./drivers/usb/gadget/udc and it's stamped October 2026 — go off, kernel docs, we love to see it 🌈✨💖

📦 where this page comes from