STRUCT GPIO_V2_LINE_INFO_CHANGED(9)

💖 NAME 💖

okay so this is struct gpio_v2_line_info_changed — bestie, it's literally the little struct that tells you all about a change in status of a GPIO line ✨ it's giving "I noticed something moved and I have receipts" 🎀

(also hii, welcome to the Kernel API Manual, we're in the kernel club now 💅)

✨ SYNOPSIS ✨

here's the whole glow-up, exactly as it lives in the source:

struct gpio_v2_line_info_changed {
    struct gpio_v2_line_info info;
    __aligned_u64 timestamp_ns;
    __u32 event_type;
    __u32 padding[5];
 };

no cap, that's the entire vibe 🔥

🎀 Members 🎀

• info — the updated line information, like the fresh new fit the line is wearing 👑 it's the "after" picture, fr fr
• timestamp_ns — an estimate of the time the status change happened, measured in nanoseconds ⏱️ so yes, the kernel is out here being precise down to the nano level, main character energy honestly
• event_type — the type of change, and its value comes from enum gpio_v2_line_changed_type 🦋 so you know exactly what kind of glow-up just occurred
• padding — reserved for future use 🫶 don't touch it, don't fill it, it's saving a seat for future lore 💜

lowkey important: that padding[5] is reserved for future use, so please just leave it alone bestie 😭 it's not yours

🌸 SEE ALSO 🌸

kernel file ./include/uapi/linux/gpio.h, plus the whole friend group:

• struct gpiochip_info(9)
• enum gpio_v2_line_flag(9)
• struct gpio_v2_line_values(9)
• enum gpio_v2_line_attr_id(9)
• struct gpio_v2_line_attribute(9)
• struct gpio_v2_line_config_attribute(9)
• struct gpio_v2_line_config(9)
• struct gpio_v2_line_request(9)
• struct gpio_v2_line_info(9)
• enum gpio_v2_line_changed_type(9)
• enum gpio_v2_line_event_id(9)
• struct gpio_v2_line_event(9)
• struct gpioline_info(9)
• struct gpioline_info_changed(9)
• struct gpiohandle_request(9)
• struct gpiohandle_config(9)
• struct gpiohandle_data(9)
• struct gpioevent_request(9)
• struct gpioevent_data(9)

okay that's the whole page, mwah 💋 and for the credits: this one lives over in ./include/uapi/linux and it's dated October 2026 — iconic, timeless, periodt 🌈👑 (yes it's still struct gpio_...info_changed(9), the name didn't change, she's just that girl 💅)