gpiochip_add_irqchip(9)

📦 version 7.3.1, in nixpkgs unstable

💅 gpiochip_add_irqchip(9) — aka the "give this GPIO chip an IRQ chip" moment

okay so bestie, welcome to the Kernel API Manual 💖 this one lives in the kernel driver world and it's literally about wiring an IRQ chip onto a GPIO chip. yes it's as cute as it sounds (it is not cute, it's kernel plumbing, but we're slaying anyway).

✨ NAME ✨

gpiochip_add_irqchip — adds an IRQ chip to a GPIO chip 🎀

🦋 SYNOPSIS 🦋

int gpiochip_add_irqchip (struct gpio_chip *gc , struct lock_class_key
*lock_key , struct lock_class_key *request_key );

🌸 ARGUMENTS 🌸

  • gc — the GPIO chip you're adding the IRQ chip to. main character energy, obviously 💅
  • lock_key — lockdep class for the IRQ lock 🔒
  • request_key — lockdep class for the IRQ request 🔑

⭐ RETURN ⭐

0 on success, or a negative errno on failure. no cap, that's the whole vibe check 😭

if you get a negative errno back, it did not slay. handle it, bestie.

👑 SEE ALSO 👑

and now the part where I hold your hand through the entire friend group 🫶 — Kernel file ./drivers/gpio/gpiolib.c, plus:

like I said. entire friend group. but they're all iconic in their own way, iykyk 💜

and that's the page!! 🧚‍♀️✨ this little baddie comes to you from ./drivers/gpio, dated October 2026, sitting pretty in the Kernel API Manual — go forth and add those IRQ chips, bestie, you're gonna eat 💅🍓💖

📦 where this page comes from