SMSCMON(4)

✨ SMSCMON(4) ✨

okay so this is a Kernel Interfaces Manual page, and it's literally about the smscmon driver bestie 🎀

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💖 NAME 💖

smscmon — the Standard Microsystems Corporation LPC47M192 Super I/O driver, but make it fashion ✨

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🦋 SYNOPSIS 🦋

smscmon0 at iic? addr 0x2c
smscmon0 at iic? addr 0x2d

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🌸 DESCRIPTION 🌸

so basically the smscmon driver gives you support for the hardware monitoring portion of the Standard Microsystems Corporation LPC47M192 and LPC47M997 Super I/O chips, and it's built to be used with the envsys(4) API 🫶 like that's the whole vibe.

and the chip is not playing around — it supports 11 sensor inputs, no cap 👑

• +2.5V — units: uV DC — typical use: 2.5V Supply
• Vccp — units: uV DC — typical use: CPU Vcore
• +3.3V — units: uV DC — typical use: 3.3V Supply
• +5V — units: uV DC — typical use: 5V Supply
• +12V — units: uV DC — typical use: 12V Supply
• Vcc — units: uV DC — typical use: Chip's supply voltage
• +1.5V — units: uV DC — typical use: 1.5V Supply
• +1.8V — units: uV DC — typical use: 1.8V Supply
• Remote Temp1 — units: uK — typical use: CPU temperature
• Ambient Temp — units: uK — typical use: Local chip temperature
• Remote Temp2 — units: uK

see how the two temps are in uK and the voltages are in uV DC? that's the assignment and it ate 💅

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🔥 SEE ALSO 🔥

• envsys(4)
• envstat(8)

go read those too, iykyk 📚

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🎀 HISTORY 🎀

the smscmon device appeared in NetBSD 6.0 ⭐ like it's been iconic since day one.

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👑 AUTHORS 👑

the smscmon driver was written by Takahiro Hayashi — thank you for your service king 🫡💜

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and that's the whole page bestie! this version came from the Debian side of things, dated June 1, 2016 — mwah, go check your voltages 😭🍓💖