usb_find_interface(9)

📦 version 7.3.1, in nixpkgs unstable

💅 usb_find_interface (kernel API manual)

okay so bestie, welcome to the usb_find_interface(9) page 💖 this is a kernel API manual situation, and honestly? it does exactly one thing and does it cute. let's get into it ✨

🌸 NAME 🌸

usb_find_interface — find the usb_interface pointer for a driver and a device 🫶

✨ SYNOPSIS ✨

struct usb_interface * usb_find_interface (struct usb_driver *drv , int
minor );

like… it takes two things and gives you a pointer back. main character energy fr fr 👑

🎀 ARGUMENTS 🎀

  • drv — the driver whose current configuration is being considered. yes bestie, current, not the ex configuration 💀
  • minor — the minor number of the desired device. the device you're looking for, in minor-number form 🌸

🦋 DESCRIPTION 🦋

so what this does is it walks the bus device list — literally strolling through the devices like it owns the place 💅 — and returns a pointer to the interface that has the matching minor and driver.

⚠️ note bestie: this only works for devices that share the USB major number. no major number match? no vibe. it's giving exclusive 🎀

⭐ RETURN ⭐

a pointer to the interface with the matching major and minor. that's it, that's the return 🫶

🔥 SEE ALSO 🔥

kernel file ./drivers/usb/core/usb.c 👀 and then the whole friend group:

like, the whole usb squad showed up 😭💖

and that's the page, bestie 🎀 this little icon lives in ./drivers/usb/core and the version slaps a date of October 2026 on it — iconic, no notes 💅✨

📦 where this page comes from