nvme_ctrl_identify(2)

💖 nvme_ctrl_identify(2) — libnvme API manual 💖

okay bestie, gather round, because we're about to talk about nvme_ctrl_identify, straight out of the libnvme API manual 💅 it's giving "section 2, system calls", it's giving "your NVMe controller is about to tell you its whole life story," and honestly? we're obsessed 🎀

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✨ NAME ✨

nvme_ctrl_identify — issues an 'identify controller' command 🌸

like. that's it. that's the whole job. it asks the controller "hey babe, who are you" and the controller answers. iconic behavior fr fr 👑

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✨ SYNOPSIS ✨

int nvme_ctrl_identify (nvme_ctrl_t c , struct nvme_id_ctrl *id );

no cap, that's the exact signature, copied character for character, don't @ me 🫶

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✨ ARGUMENTS ✨

• c — Controller instance. this is your controller, the main character of this whole operation 💖
• id — Identify controller data structure. this is where the tea gets poured once the controller spills it ☕✨

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✨ DESCRIPTION ✨

Issues an 'identify controller' command to c and copies the data into id.

so literally: you hand it a controller (c), it hits that controller with the identify-controller command, and whatever the controller says back gets copied right on into id. two steps. no drama. lowkey the cleanest little function ever 🌈

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✨ RETURN ✨

• 0 on success 🎉 slay, we got the data
• -1 on failure 😭 it's not giving what it's supposed to give

bestie. check that return value. 0 means you're eating good, -1 means something went sideways and you should probably go look at errno like the little detective you are 🔍

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aaaaand that's the whole page! no hidden options, no sneaky environment variables, no exit statuses hiding in the corner — just one tiny call with big "I know who I am" energy 🦋

source & version vibes: this is the libnvme API manual, page dated July 2026, and the whole thing is nvme_ctrl_identify(2), top to bottom, header to footer 💖✨🎀 periodt 💅