libnvme(9)

💅 libnvme(9) — the one and only

okay so bestie, welcome to the libnvme(9) page 💖 this is API Manual energy, and today's main character is a lil enum that lives inside the Start Voltage Measurements Data Structure — specifically the Log Voltage Threshold, aka LVOLT. yes it's a lot of capital letters, no i will not be apologizing for it 🫶

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✨ NAME ✨

enum nvme_voltage_measurement_lvolt — Start Voltage Measurements Data Structure - Log Voltage Threshold (LVOLT)

like, that's the whole name. it's giving "my parents gave me four middle names" 😭 but it's literally the voltage threshold enum and she ate 💅

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🌸 SYNOPSIS 🌸

enum nvme_voltage_measurement_lvolt {
    NVME_VOLTAGE_MEASUREMENT_LVOLT_LUVT_SHIFT ,
    NVME_VOLTAGE_MEASUREMENT_LVOLT_LUVT_MASK ,
    NVME_VOLTAGE_MEASUREMENT_LVOLT_LOVT_SHIFT ,
    NVME_VOLTAGE_MEASUREMENT_LVOLT_LOVT_MASK

};

that's the whole lineup, no cap — four constants, all iconic, all shifting and masking like it's their job (it is) ⭐

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🎀 Constants 🎀

bestie these are the four constants and you're gonna memorize them because they're lowkey the whole point of this page:

• NVME_VOLTAGE_MEASUREMENT_LVOLT_LUVT_SHIFT — the shift amount you use to get the Log Undervoltage Threshold (LUVT) 💜 shift it, slay it.
• NVME_VOLTAGE_MEASUREMENT_LVOLT_LUVT_MASK — the mask you use to get LUVT 🎀 mask on, threshold revealed.
• NVME_VOLTAGE_MEASUREMENT_LVOLT_LOVT_SHIFT — the shift amount you use to get the Log Overvoltage Threshold (LOVT) 🔥 different threshold, same gorgeous bit-twiddling energy.
• NVME_VOLTAGE_MEASUREMENT_LVOLT_LOVT_MASK — the mask you use to get LOVT 🌈 last one, and yes she's also just a mask. periodt.

ngl the pattern here is so clean — shift to slide the bits into place, mask to grab exactly the field you want. under-volt and over-volt, both handled, both gorgeous 💅

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🦋 a lil sign-off 🦋

and that's the whole page, bestie 💖 you just read the libnvme(9) manpage from the API Manual, dated October 2026 — go forth and measure those voltages responsibly, mwah 🫶✨