asd_control_led(9)

📦 version 7.3.1, in nixpkgs unstable

💅 asd_control_led — kernel API manual, bestie edition 🎀

okay so this is the page for asd_control_led(9) — it lives in the Kernel API Manual, and it's literally just "enable/disable an LED on the board". tiny function, big main character energy ✨

✨ NAME ✨

asd_control_led — enable/disable an LED on the board 💡

bestie it does exactly what it says on the tin, no plot twists, no cap.

🌸 SYNOPSIS 🌸

void asd_control_led (struct asd_ha_struct *asd_ha , int phy_id , int op );

returns void, so like... don't go looking for a return value, she gives you nothing back and she's iconic for it 🫶

🦋 ARGUMENTS 🦋

  • asd_ha — pointer to host adapter structure. this is the whole adapter's vibe, you gotta hand it over first 🧚
  • phy_id — integer, the phy id. yes it's an int, no I'm not gonna explain why, that's just how she is 🙈
  • op — integer, 1 to enable, 0 to disable the LED. that's the whole switch. one or zero. binary baddie behavior 💅

🔥 DESCRIPTION 🔥

so the way this works: first we output enable the LED, then we set the source to be an external module. that's it. that's the whole function. two steps, ate, periodt ⭐

like — output enable first, then source equals external module. order matters, don't switch it up on her 😭

ngl this is one of those functions where the manpage is longer than the code. and honestly? respect. 👑

🌈 SEE ALSO 🌈

this function is lowkey in its group-chat era, so here's the whole friend group, all from the kernel file ./drivers/scsi/aic94xx/aic94xx_hwi.c:

go read asd_turn_led(9) next fr fr, they're literally siblings 💖

k bye bestie, this page came straight out of ./drivers/scsi/aic94xx and it's dated October 2026 — mwah, slay, don't forget to make htmldocs 💜✨

📦 where this page comes from