STRUCT GPIOHANDLE_DATA(9)

🦋 struct gpiohandle_data(9) 🦋

okay so bestie, welcome to the Kernel API Manual — this one's a lil vintage, but we're gonna make it make sense 💅

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✨ NAME ✨

struct gpiohandle_data — literally just the info of values sitting on a GPIO handle 🎀

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🌸 SYNOPSIS 🌸

struct gpiohandle_data {
    __u8 values[GPIOHANDLES_MAX];
 };

yep, that's the whole thing. one member. she's simple, she's iconic, she's values 👑

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💖 Members 💖

• values — okay so this lil array is doing double duty, main character energy fr:
  • when you're getting the state of lines, it contains the current state of a line 👀
  • when you're setting the state of lines, it should contain the desired target state 🎯

States are 0 (inactive) or 1 (active), no cap. and when you're setting? anything other than 0 or 1 will be interpreted as active — so like, don't get cute with it unless you mean it 😭

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⚠️ Note ⚠️

bestie listen. this struct is part of ABI v1 and it is deprecated 💀 like, it's giving "still works but pls move on". use ABI v2 and struct gpio_v2_line_values instead 🫶

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🌈 SEE ALSO 🌈

Kernel file ./include/uapi/linux/gpio.h — and 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)
• struct gpio_v2_line_info_changed(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 gpioevent_request(9)
• struct gpioevent_data(9)

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and that's the whole page, bestie 💜 sign-off time: this lil number lives in ./include/uapi/linux, dated October 2026, and yes she's still filed under struct gpiohandle_data(9) — deprecated but never forgotten 🎀✨ iykyk 🌸