NVME_SET_FEATURES_LBA_RANGE(2)

✨ nvme_set_features_lba_range(2) ✨

okay bestie, welcome to the libnvme API manual 💖 this one's nvme_set_features_lba_range, and yes it does exactly what it says on the tin — it sets the LBA range feature on your NVMe device. no cap. 🦋

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🌸 NAME 🌸

nvme_set_features_lba_range — Set LBA range feature 💅

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⭐ SYNOPSIS ⭐

int nvme_set_features_lba_range (int fd , __u32 nsid , __u8 nr_ranges ,
       bool save , struct nvme_lba_range_type *data , __u32 *result );

like, that's the whole summoning circle 🕯️ give it a file descriptor, a namespace, some ranges, and a dream ✨

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🎀 ARGUMENTS 🎀

• fd — File descriptor of nvme device 🫶 this is your lil handle to the device, the entryway, the portal, the whole vibe.
• nsid — Namespace ID 👑 which namespace are we talking to, bestie? gotta be specific.
• nr_ranges — Number of ranges in data 🌈 fr fr, just count them. how many ranges live in data? that many.
• save — Save value across power states 💀 so it survives a power cycle? yes ma'am, set this and it persists. iconic behaviour honestly.
• data — User address of feature data 🍓 a pointer, your address, your feature data. that's it, that's the whole thing.
• result — The command completion result from CQE dword0 😭 yes dword0, the classic. the completion queue entry hands you this lil nugget.

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💜 RETURN 💜

so what do you get back? the nvme command status if a response was received 💖 — peep enum nvme_status_field for the full tea on what those statuses mean, iykyk — or -1 with errno set otherwise 🙈 like if things went sideways sideways, you get the -1 and an errno to explain the drama.

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ngl, always check your return value. the -1 path is lowkey the main character of "why is my code broken" 😭

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and that's the page, bestie 🎀 this was nvme_set_features_lba_range(2) from the libnvme API manual, dated July 2026 ⭐ go forth and set those LBA range features, you absolute legend 💅✨🫶