mpt3sas_hwmon_register(9)

💖 mpt3sas_hwmon_register(9) 💖

okay so bestie, this is a page from the Kernel API Manual and honestly? it's a little guy with one job and it does it slayfully. it's mpt3sas_hwmon_register — the one that registers an hwmon device for the IOC ✨

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🌸 SYNOPSIS 🌸

int mpt3sas_hwmon_register (struct MPT3SAS_ADAPTER *ioc );

like, that's the whole signature, no notes 💅

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🎀 ARGUMENTS 🎀

• ioc — per adapter object 🫶 literally the adapter's whole lil identity, passed in so we know which IOC we're hooking up to hwmon.

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🦋 CONTEXT 🦋

sleep.

that's it. that's the context. it can sleep, so don't be calling this from somewhere spicy where sleeping is Not Allowed 😭

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⭐ DESCRIPTION ⭐

here's the tea 🍓 — this function registers an hwmon device for the IOC.

and the iconic part? it succeeds without registering when no temperature sensors are present. so cards that don't have thermal monitoring going on just… don't expose an empty hwmon node. no ghost node, no sad empty folder, no vibe check failure. she simply doesn't show up 🙈✨

it's paired with mpt3sas_hwmon_unregister from the driver's remove path, which is giving matched set, main character and her costar, you love to see it 👑

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🔥 RETURN 🔥

• 0 — success, we ate 💅
• non-zero — failure 😭

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/scsi/mpt3sas/mpt3sas_hwmon.c — go read the source bestie, it's right there
• mpt3sas_hwmon_unregister(9) — the other half of the duo, iykyk 🦋

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okay that's the whole page, no cap. this one lives in ./drivers/scsi/mpt3sas and it's dated October 2026, so like… future vibes but make it kernel. mwah, go register something responsibly 🎀💖✨