sata_pmp_set_lpm(9)

📦 version 7.3.1, in nixpkgs unstable

💅 sata_pmp_set_lpm(9) — the Kernel API Manual, bestie edition

okay so you're in the kernel API manual and the page you opened is literally sata_pmp_set_lpm(9), and honestly? it's giving "small function, big job." let's get into it 🎀

✨ NAME ✨

sata_pmp_set_lpm — configure LPM for a PMP link. that's it, that's the whole name, and she ate 💅

🌸 SYNOPSIS 🌸

int sata_pmp_set_lpm (struct ata_link *link , enum ata_lpm_policy policy
, unsigned hints );

so she takes three things and hands you back an int. iconic signature, no notes 🔥

🦋 ARGUMENTS 🦋

  • link — the PMP link you're configuring LPM for. this is the main character of the operation, fr fr 💖
  • policy — your target LPM policy. the vibe you're aiming for ✨
  • hints — the LPM hints. little extra context, lowkey important 👑

💜 DESCRIPTION 💜

so the whole point: this function configures LPM for link. simple as that 🫶

and bestie, here's the cute part — this function will contain any PMP specific workarounds if necessary. like, if some hardware is being extra, this is where the patch-up lives. not me being the designated responsible one 😭

LOCKING: EH context. don't be out here calling her from anywhere else, ngl 💀

⭐ RETURN ⭐

  • 0 on success 🎉
  • -errno on failure 😭

like every other well-behaved kernel function, she keeps it real with the errno convention 🌈

🧚 SEE ALSO 🧚

kernel file ./drivers/ata/libata-pmp.c, plus the whole friend group:

fourteen whole besties, go read them all, iykyk 💖

and that's the page!! 🦋 special shoutout to ./drivers/ata for being the source location and to October 2026 for the date — this manual was literally stamped in the future and we respect the time-travel queen energy 👑💅 periodt ✨

📦 where this page comes from