devm_gpiochip_fwd_alloc(9)

📦 version 7.3.1, in nixpkgs unstable

💅 devm_gpiochip_fwd_alloc — the Kernel API Manual moment

okay so bestie, welcome to devm_gpiochip_fwd_alloc(9) — literally the glow-up ritual where a brand-new GPIO forwarder gets born ✨ this is the Kernel API Manual entry you've been looking for, and it's giving "allocator but make it devres-managed" 🫶

🌸 NAME 🌸

devm_gpiochip_fwd_alloc — allocate and initialize a new GPIO forwarder. that's it, that's the whole vibe: fresh forwarder, fully initialized, zero regrets 💅

✨ SYNOPSIS ✨

struct gpiochip_fwd * devm_gpiochip_fwd_alloc (struct device *dev ,
       unsigned int ngpios );

look at her go 😭 two params, one pointer out, iconic behavior only 👑

🎀 ARGUMENTS 🎀

  • dev — the parent device pointer 🫶 this is the main character the forwarder gets attached to, no cap.
  • ngpios — how many GPIOs are living inside this forwarder. yes, it's an unsigned int, and yes, you gotta count them yourself 💀

🔥 RETURN 🔥

you get back an opaque object pointer — like, a mysterious little guy, don't ask questions — or, if things go sideways, an ERR_PTR-encoded negative error code 🙈 so fr fr, check it with IS_ERR() before you start celebrating, alright?

ngl, "opaque object pointer" is such a mood. the pointer is real, the internals are between her and the kernel 💜

🦋 SEE ALSO 🦋

the whole friend group shows up here, and we love a supportive squad 🌈

like, seventeen whole besties. iykyk 💖

and that's the page, bestie 🎀 sourced straight from ./drivers/gpio, dated October 2026, and living under the devm_gpiochip_fwd_alloc(9) name forever and ever. go forth and forward those GPIOs, you absolute icon 🦋✨👑

📦 where this page comes from