nvme_get_fe...ost_behavior(2)

💅 nvme_get_features_host_behavior — bestie's guide to the libnvme API manual 💅

okay so like, this is a page from the libnvme API manual — you know, the nvme_get_fe...ost_behavior(2) one (yes the title is literally truncated like that, the manpage gods were feeling quirky). buckle up buttercup, we're getting a host behavior feature and we're gonna understand every crumb of it 🍓

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✨ NAME ✨

nvme_get_features_host_behavior — Get host behavior feature 💖

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✨ SYNOPSIS ✨

lowkey the whole vibe in one line, no cap:

int nvme_get_features_host_behavior (int fd , enum nvme_get_features_sel
sel , struct nvme_feat_host_behavior *data , __u32 *result );

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✨ ARGUMENTS ✨

every single one of these matters, don't skip, i'm watching 👀

• fd — the file descriptor of the nvme device. your lil' handle to the drive, bestie 🎀
• sel — which type of attribute to return, fr fr. go look at enum nvme_get_features_sel for the deets.
• data — pointer to structure nvme_feat_host_behavior. that's where the good stuff goes ✨
• result — the command completion result from CQE dword0. yes, dword0. iconic. 👑

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✨ RETURN ✨

so like, what do you get back? the nvme command status if a response was received (peep enum nvme_status_field for that), or -1 with errno set otherwise. that's the deal, take it or leave it 💀

lowkey important: -1 + errno means no response came home. check your errno, bestie, it's telling you something 😭

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and that's the whole page, you ate it up 🫶 this lil' slice of the libnvme API manual was dated July 2026, and the title up top is nvme_get_fe...ost_behavior(2) — yes the truncation is part of the lore, we don't question it 💅✨