sata_pmp_write(9)

📦 version 7.3.1, in nixpkgs unstable

💅 sata_pmp_write(9) — from the Kernel API Manual, bestie ✨

Okay so real talk, this one is from the sata_pmp_write(9) girlies of the kernel API manual and it's giving "tiny function, huge responsibilities" 🎀 lowkey iconic.

🌸 NAME 🌸

sata_pmp_write — write PMP register, no cap 💖

✨ SYNOPSIS ✨

unsigned int sata_pmp_write (struct ata_link *link , int reg , u32 val );

Like, that's the whole vibe. Three args, one return, done 👑

🦋 ARGUMENTS 🦋

  • link — the link you're writing the PMP register for, bestie. This is your link, okay? 🫶
  • reg — the register you wanna write to. Yeah. That one. ✨
  • val — the value you're writing into it. The actual payload. The main character of the operation 💅

💜 DESCRIPTION 💜

So you're writing a PMP register. That's it, that's the whole thing. Write PMP register. Periodt 💀

LOCKING: Kernel thread context (may sleep) 😴 — so like, yes, it can sleep, which is honestly so valid of it.

⭐ RETURN ⭐

  • 0 on success 🎉 slay, everything worked
  • AC_ERR_* mask on failure 😭 not slay, something went wrong — and it comes back as a mask, iykyk

🔥 SEE ALSO 🔥

Kernel file ./drivers/ata/libata-pmp.c — go read it, fr fr, it's right there:

Like the whole PMP friend group came out to support 💖✨ a whole squad.

Okay bye bestie, that's the page!! 🧚 It's from ./drivers/ata, dated October 2026, and yes the manual page is literally called sata_pmp_write(9) — nailed it, mwah 💋🌈

📦 where this page comes from