USB_DEVICE_INFO(9)

💅 USB_DEVICE_INFO 💅

okay bestie, this is a kernel API manual page, section 9, and it's all about USB_DEVICE_INFO — the macro that's literally the matchmaker for a whole class of USB devices 🩷

---

✨ NAME ✨

USB_DEVICE_INFO — a macro used to describe a class of usb devices. that's it, that's the whole vibe 🎀

---

🌸 SYNOPSIS 🌸

USB_DEVICE_INFO (cl , sc , pr );

three little args, one big slay ✨

---

🦋 ARGUMENTS 🦋

• cl — the bDeviceClass value. yes, exactly that field name, don't come for me 💅
• sc — the bDeviceSubClass value. the subclass, the understudy, the supporting character 😌
• pr — the bDeviceProtocol value. the protocol, obviously. main character protocol energy 🔥

---

👑 DESCRIPTION 👑

so here's the tea 🍓 — this macro builds you a struct usb_device_id that matches one specific class of devices. like, a whole category. not one single vendor/product combo, a class. that's the entire job and it does it gorgeously, no cap 💜

---

🌈 SEE ALSO 🌈

bestie the cross-reference list is long and honestly kind of iconic, buckle up 🧚

• Kernel file ./include/linux/usb.h — that's where the good stuff lives
• struct usb_host_endpoint(9)
• struct usb_interface(9)
• usb_set_intfdata(9)
• struct usb_interface_cache(9)
• struct usb_host_config(9)
• struct usb_device(9)
• usb_hub_for_each_child(9)
• usb_interface_claimed(9)
• usb_make_path(9)
• USB_DEVICE(9)
• USB_DEVICE_VER(9)
• USB_DEVICE_INTERFACE_CLASS(9)
• USB_DEVICE_INTERFACE_PROTOCOL(9)
• USB_DEVICE_INTERFACE_NUMBER(9)
• USB_INTERFACE_INFO(9)
• USB_DEVICE_AND_INTERFACE_INFO(9)
• USB_VENDOR_AND_INTERFACE_INFO(9)
• struct usb_driver(9)
• struct usb_device_driver(9)
• struct usb_class_driver(9)
• module_usb_driver(9)
• struct urb(9)
• usb_fill_control_urb(9)
• usb_fill_bulk_urb(9)
• usb_fill_int_urb(9)
• usb_urb_dir_in(9)
• usb_urb_dir_out(9)
• struct usb_sg_request(9)

like I said. a list. go read them, they're all right there in the kernel docs, iykyk 📚✨

---

reminder bestie: every name above is a literal man page reference — no paraphrasing, no skipping. the kernel does not do "tl;dr" 💀

---

okay that's the whole page, mwah 💋 this one came from ./include/linux and it's dated October 2026 — go forth and match some USB classes, you absolute icon 🫶💖⭐