nvme_compare(2)

✨ nvme_compare ✨

okay bestie, welcome to the libnvme API manual 💖 this one's all about nvme_compare — a lil syscall that submits an nvme user compare command. yes it's giving ✨storage girlie✨ and we're gonna understand it together, no cap.

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🌸 NAME 🌸

nvme_compare — submit an nvme user compare command 🦋

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🎀 SYNOPSIS 🎀

int nvme_compare (struct nvme_io_args *args );

yes the parenthesis spacing is exactly like that, we do not touch the sacred formatting 💅

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💜 ARGUMENTS 💜

• args — a struct nvme_io_args argument structure. it's the one and only thing you're handing over, and it's carrying all the actual deets, so make sure it's set up right, fr fr 🫶

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🫶 RETURN 🫶

so here's what comes back at you:

• The nvme command status if a response was received — peek enum nvme_status_field for what those mean, iykyk ✨
• or -1 with errno set otherwise 😭 like, classic Unix behaviour, we've all been there

ngl, if you get the -1, check your errno before spiraling. it's literally telling you what went wrong 💀

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and that's the whole vibe, bestie — main character energy only, no extra lore required 🌈

signing off from the libnvme API manual, this is nvme_compare(2), dated July 2026 — periodt 👑💅