STRUCT HSI_CONTROLLER(9)

💅 NAME 💅

struct hsi_controller — the HSI controller device bestie, like literally the main character of your HSI setup ✨

🦋 SYNOPSIS 🦋

struct hsi_controller {
    struct device           device;
    struct module           *owner;
    unsigned int            id;
    unsigned int            num_ports;
    struct hsi_port         *port[];
};

okay so that's the whole vibe, no cap 👑

🎀 Members 🎀

• device — the driver model representation of the device, aka its whole driver-model identity card 🪪
• owner — a pointer to the module that owns the controller, like the parent holding the permission slip 🫶
• id — the HSI controller ID, its little number tag 🏷️
• num_ports — the number of ports in the HSI controller, so you know how many port slots we're working with 🔢
• port — the array of HSI ports, all of them chilling in one spot 💖

🌈 SEE ALSO 🌈

Kernel file ./include/linux/hsi/hsi.h, plus the whole friend group: struct hsi_channel(9), struct hsi_config(9), struct hsi_board_info(9), struct hsi_client(9), struct hsi_client_driver(9), struct hsi_msg(9), struct hsi_port(9), hsi_id(9), hsi_port_id(9), hsi_setup(9), hsi_flush(9), hsi_async_read(9), hsi_async_write(9), hsi_start_tx(9), hsi_stop_tx(9) — go say hi, iykyk 💫

and that's a wrap, bestie 🎬 this iconic little page lives in ./include/linux/hsi, dated October 2026 — slay, periodt 💅✨🌸