rio_local_write_config_32(9)

📦 version 7.3.1, in nixpkgs unstable

💅 rio_local_write_config_32 — bestie's guide to poking 32 bits into local config space ✨

okay so this is a page from the Kernel API Manual, and the star of the show is rio_local_write_config_32(9). Yes it's a mouthful, no you don't have to say it out loud, iykyk 🫶

🌸 NAME 🌸

rio_local_write_config_32 — literally writes 32 bits to local configuration space. that's the whole vibe. that's the assignment 💅

✨ SYNOPSIS ✨

int rio_local_write_config_32 (struct rio_mport *port , u32 offset , u32
data );

it returns an int, it takes three things, and it's giving "small function, big responsibilities" energy 🔥

🎀 ARGUMENTS 🎀

  • port — the master port. the main character of this operation, lowkey 👑
  • offset — where you're aiming inside local configuration space. like a little address bookmark 📍
  • data — the actual data getting written. the payload. the moment. 🍓

🦋 DESCRIPTION 🦋

so what does it do fr fr? it writes 32 bits of data to the specified offset within the local device's configuration space. that's it, that's the whole thing — no cap, it's that clean ✨

think of it as dropping a 32-bit little gift into a very specific slot of your local device's config space. the way that it just knows where to put it 😭💖

🌈 SEE ALSO 🌈

all the siblings and cousins, all iconic, all linked from the kernel file ./include/linux/rio_drv.h:

like a whole friend group honestly, go say hi 🫶

and that's the page bestie 💜 this masterpiece lives under ./include/linux — October 2026 edition — go forth and write those 32 bits, slay 💅✨

📦 where this page comes from