STRUCT USB_OS_DESC_TABLE(9)

💅 struct usb_os_desc_table(9) — a whole vibe check on the Kernel API Manual

okay so bestie, picture this: it's giving "one interface, but make it Windows-compatible". This is the little struct that describes the OS descriptors hanging off a single interface of a usb_function. Yes, that's the whole thing. Slay. 🎀

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✨ NAME ✨

struct usb_os_desc_table — it literally describes the OS descriptors that are associated with one interface of a usb_function. One interface, one table, no cap. 🫶

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🌸 SYNOPSIS 🌸

struct usb_os_desc_table {
    int if_id;
    struct usb_os_desc      *os_desc;
 };

look at her. two members. iconic. no notes. 💖

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🦋 Members 🦋

• if_id — the interface id. that's it, that's the whole member, she's just the ID of the interface bb. 🔥
• os_desc — a pointer to the "Extended Compatibility ID" and the "Extended Properties" of the interface. the main character of the struct ngl. 👑

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⭐ Description ⭐

so here's the tea, and it's important so listen up: each interface can have at most one "Extended Compatibility ID" — one. singular. don't be greedy — and a number of "Extended Properties". a number of them, so like, go off, have several. 🌈

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💜 SEE ALSO 💜

go touch some grass in the kernel source, these are all right here, iykyk:

• Kernel file ./include/linux/usb/composite.h
• struct usb_os_desc_ext_prop(9)
• struct usb_os_desc(9)
• struct usb_function(9)
• struct usb_configuration(9)
• struct usb_composite_driver(9)
• module_usb_composite_driver(9)
• struct usb_composite_dev(9)

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okay that's the whole page, you ate that fr fr 💅✨ this little number lives in ./include/linux/usb and the version on the tin is October 2026 — so mark your calendar bestie, mwah, bye 🍓🧚💜