gpiod_export_link(9)

💖 gpiod_export_link(9) 💖

okay bestie, welcome to the Kernel API Manual — this is gpiod_export_link(9) and it is literally the social-media manager for GPIO sysfs nodes. It makes a cute little link so your device can find an exported GPIO without doing the most. 🫶

✨ SYNOPSIS ✨

int gpiod_export_link (struct device *dev , const char *name , struct
       gpio_desc *desc );

🎀 ARGUMENTS 🎀

• dev — the device under which to create the symlink. it's giving "where the link lives" energy.
• name — the name of the symlink. yes, you get to name it. main character choice fr fr.
• desc — the GPIO to create the symlink to, and it must be already exported. no cap, check that first.

🌸 DESCRIPTION 🌸

So what this does is set up a symlink from /sys/.../dev/name to the /sys/class/gpio/gpioN node. iconic behavior honestly. 🔥

💀 important bestie: the caller is responsible for unlinking. this function does not clean up after itself, so don't just leave your link sitting there like an unread group chat. 😭

⭐ RETURN ⭐

• 0 on success
• negative errno on failure

that's it. slay. 💅

🦋 SEE ALSO 🦋

• Kernel file ./drivers/gpio/gpiolib-sysfs.c — and its besties gpiod_export(9), gpiod_unexport(9)

later, bestie — this page came from ./drivers/gpio, October 2026 💜✨