set_led_rgb(3)

📦
version 0.7.1 · 2 versions
, in nixos 26.05

💅 NAME 💅

okay bestie, welcome to the set_led_rgb(3) page from the Arcan Lua API — this one is all about setting the specific R,G,B values for an individual LED on a specific controller. no cap. ✨

📜 SYNOPSIS 📜

here's the whole call, bestie — don't lose the bool:

bool
set_led_rgb( controlid, ledid, r, g, b, buffer )

🌈 DESCRIPTION 🌈

so this function sets the color value of an individual LED on a known LED controller. cute. 🎀

but like… it has receipts, and the return value matters:

  • -1 — the vibe check failed because controlid does not exist, ledid is not a valid index, or the device backed by controlid lacks the r,g,b capability. 😭
  • a negative ledid — not me setting the value for all LEDs associated with the device. literally all of them. 👑
  • 0 — the update failed because it would block the device. this can happen when many LED update queries are being pushed to a slow device. 💀 no cap.
  • the optional boolean buffer — if you set it, the request may be queued, and that queue will not dispatch until a non-buffered update is called. periodt. 🦋
bestie, the buffer thing is real: queued requests just sit there until a non-buffered update shows up. don't forget that part. 🫶

mwah 💖 that's the whole page. it's from iodev and dated October 2026 — go make those LEDs iconic. 🌈👑

📦 where this page comes from