intel_scu_ipc_dev_readv(9)

📦 version 7.3.1, in nixpkgs unstable

✨ intel_scu_ipc_dev_readv ✨

ok so this is a page from the Kernel API Manual and honestly? it's giving "small function, big responsibilities" 💅 buckle up bestie, we're reading registers 🌸

🎀 NAME 🎀

intel_scu_ipc_dev_readv — literally just read a set of registers 💖 that's the whole vibe, no cap

🦋 SYNOPSIS 🦋

int intel_scu_ipc_dev_readv (struct intel_scu_ipc_dev *scu , u16 *addr ,
       u8 *data , size_t len );

look at her go 😭 so concise, so iconic ✨

🌸 ARGUMENTS 🌸

  • scu — the Optional SCU IPC instance 👑 "optional" is doing a lot of heavy lifting here, just saying 🫶
  • addr — the Register list 📋 like, the roster of registers you're pulling from
  • data — the Bytes to return 🍓 this is where the goods land, bestie
  • len — the Length of array 📏 gotta tell her how many we're talking about

💜 DESCRIPTION 💜

So the whole job is: read registers 🎀 Returns 0 on success, or an error code if things go sideways 😭 (we love a clear exit status).

And here's the part that's lowkey the best: all locking between SCU accesses is handled for the caller 🔥 like, you don't have to think about it. somebody else already thought about it. main character energy from the function, honestly 💅

⚠️ heads up bestie: the largest array length permitted by the hardware is 5 items — that's a hardware ceiling, not a suggestion, do NOT test her 🙈
😴 also: this function may sleep. fr fr. so don't call it somewhere you can't nap, iykyk 💀

🌈 SEE ALSO 🌈

Kernel file ./drivers/platform/x86/intel_scu_ipc.c — go read the source, it's right there, be nosy 🧚

and then the whole friend group 👑:

and that's the page, bestie 🫶 brought to you by ./drivers/platform/x86, dated October 2026 ⭐ go forth and read those registers, but remember: max 5 items and she may sleep 💖✨🎀💅

📦 where this page comes from