NVME_GET_FEATURES_LBA_RANGE2(2)

✨ nvme_get_features_lba_range2(2) ✨

okay bestie, welcome to the libnvme API manual, section 2 — yes, the big-girl system-calls-and-library-functions section 💅 this one's a lil function called nvme_get_features_lba_range2 and she is very demure, very mindful, very much about asking your NVMe device "hey girl, what's your LBA range feature looking like rn?" 🦋

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🌸 NAME 🌸

nvme_get_features_lba_range2 — Get LBA range feature 🎀

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💖 SYNOPSIS 💖

int nvme_get_features_lba_range2 (int fd , enum nvme_get_features_sel
sel , __u32 nsid , struct nvme_lba_range_type *data , __u32 *result );

like. look at her. five arguments. all important. no notes. ✨

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🫶 ARGUMENTS 🫶

• fd — the file descriptor of the nvme device, aka your ticket into the club 🎟️ no fd, no entry, sorry babe.
• sel — selects which type of attribute to return, and for the full menu of options you gotta go peek at enum nvme_get_features_sel 📋 choose wisely.
• nsid — the Namespace ID, aka which namespace we're talking to. be specific, bestie, it's a whole identity thing 👑
• data — a buffer to receive the LBA Range Type data structure. it's giving empty vessel waiting to be filled with knowledge 🧚
• result — the command completion result from CQE dword0. yes that's a real thing. iykyk 💀

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🔥 RETURN 🔥

She returns the nvme command status if a response was received — and for the full deets on that, go look at enum nvme_status_field — or, and hear me out, she returns -1 with errno set if it's not that. so basically: either you got an answer or you got a whole error situation. no in between. periodt. 😭

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🚨 lowkey important: if you're seeing -1, bestie, that is not a status, that's a "check errno immediately" moment. do not pass go. check errno. 🫡

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okay that's the whole page, you ate that 💅 this gorgeous lil slice of documentation comes to you from the libnvme API manual, dated July 2026 — go forth and get those features, bestie, and remember: the LBA range feature was never the problem, it was the fd all along 🌈💖✨