STRUCT F_GETHER_OPTS(9)

💖 NAME 💖

struct f_gether_opts — subset function options, bestie ✨ and yup, this is the struct f_gether_opts(9) page from the Kernel API Manual 🫶.

🌈 SYNOPSIS 🌈

struct f_gether_opts {
    struct usb_function_instance    func_inst;
    struct net_device               *net;
    bool bound;
    int bind_count;
    struct mutex                    lock;
    int refcnt;
};

🦋 Members 🦋

• func_inst — the USB function instance, periodt 💅.
• net — the net_device that's associated with the subset function ✨.
• bound — true if the net_device is shared and pre-registered during the legacy composite driver's bind phase (e.g., multi.c). If it's false, then the subset function will register the net_device during its own bind phase 🔥.
• bind_count — tracks the number of configurations the subset function is bound to, preventing double-registration of the net device 👑.
• lock — protects the data from concurrent access by configfs read/write and create symlink/remove symlink operations 🎀.
• refcnt — the reference counter for the function instance 🌸.

⭐ SEE ALSO ⭐

• Kernel file — ./drivers/usb/gadget/function/u_gether.h 🔗

xoxo, bestie 💖 — source/version: ./drivers/usb/gadget/function · date: October 2026 🌙