gpiochip_fwd...o_set_config(9)

📦 version 7.3.1, in nixpkgs unstable

💅 gpiochip_fwd_gpio_set_config(9) 💅

okay so bestie, welcome to the Kernel API Manual ✨ — this one's a lil function called gpiochip_fwd_gpio_set_config, and honestly? it's giving "short but important." let's get into it 🫶

🌸 NAME 🌸

gpiochip_fwd_gpio_set_config — sets @config for a GPIO forwarder line 🔥 that's literally the whole job, and she does it well.

✨ SYNOPSIS ✨

int gpiochip_fwd_gpio_set_config (struct gpiochip_fwd *fwd ,
                                  unsigned int offset ,
                                  unsigned long config );

like, three args, one int back. clean. no cap 💅

🎀 ARGUMENTS 🎀

  • fwd — the GPIO forwarder itself. she's the main character here 👑
  • offset — the offset of the line. which line? this line. be specific bestie 🦋
  • config — same packed config format as generic pinconf, iykyk. don't get creative with it, it's the pinconf-packed situation ⭐

💖 RETURN 💖

  • 0 on success 🎉 slay, we love a clean zero
  • -ENOTSUPP if the controller doesn't support setting the configuration 😭 like it's not a skill issue on your end, the hardware just said no 🙈

🦋 SEE ALSO 🦋

kernel file: ./drivers/gpio/gpio-aggregator.c — yes go read it, it's lowkey iconic 📖

and the whole friend group 💜:

bestie reminder: -ENOTSUPP is a real answer and you have to handle it. no pretending it won't happen 🫶

okay that's the page!! sourced from ./drivers/gpio, dated October 2026, and it's gpiochip_fwd_gpio_set_config(9) forever and always 🧚💜 bye bestie!!

📦 where this page comes from