usb_driver_s...onfiguration(9)

📦 version 7.3.1, in nixpkgs unstable

✨ usb_driver_set_configuration ✨

okay bestie, welcome to the Kernel API Manual 💖 today we're talking about usb_driver_set_configuration — like, the whole entire point of it is "Provide a way for drivers to change device configurations". that's the name, that's the vibe, let's get into it 🫶

🌸 SYNOPSIS 🌸

int usb_driver_set_configuration (struct usb_device *udev , int config );

like yes that's the whole signature, copy it exactly, no cap 💅

🎀 ARGUMENTS 🎀

  • udev — the device whose configuration is being updated 🦋 like, this is the one getting a glow-up.
  • config — the configuration being chosen. the actual pick, the chosen one, main character energy 👑

💜 CONTEXT 💜

In process context, must be able to sleep 😴 ngl she needs her beauty rest, so don't be calling her from somewhere that can't sleep, fr fr.

🦋 DESCRIPTION 🦋

Okay so here's the tea ☕ — device interface drivers are not allowed to change device configurations. periodt. and why? because changing configurations will destroy the interface the driver is bound to and create new ones 😭 it would literally be like a floppy-disk driver telling the computer to replace the floppy-disk drive with a tape drive! imagine the audacity 💀

But still — in certain specialized circumstances the need may arise 🙈 and sometimes you just gotta. so this routine gets around the normal restrictions by using a work thread to submit the change-config request ✨ slay, loophole, iconic.

🔥 RETURN 🔥

Returns 0 if the request was successfully queued, error code otherwise.

⚠️ bestie listen — the caller has no way to know whether the queued request will eventually succeed. like, you get a "queued!" and that's it. no follow-up text. no read receipt. 😭

🌈 SEE ALSO 🌈

Kernel file ./drivers/usb/core/message.c plus this whole friend group:

and that's the page!! 💖 this little number lives in ./drivers/usb/core and it's dated October 2026 — yeah, from the future, she's ahead of her time ⭐ k byeeee, go queue your requests responsibly 🧚‍♀️🎀

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