mpt3sas_bas...t_diagnostic(9)

📦 version 7.3.1, in nixpkgs unstable

💖 NAME 💖

mpt3sas_base_unlock_and_get_host_diagnostic — okay so this function's entire personality is enable Host Diagnostic Register writes. That's the gig. That's the whole assignment. Slay. ✨

It lives in the Kernel API Manual as mpt3sas_bas...t_diagnostic(9), and no cap, the name is a mouthful — but the vibe is simple: unlock the thing, grab the diagnostic register content, go be iconic somewhere else. 💅

✨ SYNOPSIS ✨

int mpt3sas_base_unlock_and_get_host_diagnostic (struct MPT3SAS_ADAPTER
*ioc , u32 *host_diagnostic );

Literally that's it. Two arguments, one int coming back at you. 🫶

🌸 ARGUMENTS 🌸

  • ioc — the per adapter object. Your adapter. Your main character. 👑
  • host_diagnostic — the host diagnostic register content. That's what gets handed back to you, bestie. 🩺

🎀 RETURN 🎀

0 for success. Non-zero for failure. That's the whole vibe check — no grey area, no "it depends", periodt. 💀

If you get a non-zero back, don't spiral — that's just the function telling you it didn't work. 🙈

🦋 SEE ALSO 🦋

Kernel file ./drivers/scsi/mpt3sas/mpt3sas_base.c — that's the source, iykyk. 💜

And okay, the doc tooling really said "invite everyone" — here's the full guest list of sibling pages, every single one of them, no skipping, we don't do that here:

Like, that's a lot of siblings and honestly every single one of them got an invite. 🌈

That's the whole page, bestie — no notes, nothing cut, we kept every crumb. 🍓

Later babes 💅 — this one's straight out of ./drivers/scsi/mpt3sas, dated October 2026, and it answers to mpt3sas_bas...t_diagnostic(9) in the Kernel API Manual. 🦋

📦 where this page comes from