nvme_set_etdas(9)

✨ nvme_set_etdas ✨

okay bestie, welcome to the libnvme API manual 💖 — this one's page nvme_set_etdas, section 9, and it's literally all about flipping one lil bit. yes, one bit. the whole page. iconic behavior honestly 💅

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🌸 NAME 🌸

nvme_set_etdas — Set the Extended Telemetry Data Area 4 Supported bit 🦋

like. that's it. that's the whole job. she sets the Extended Telemetry Data Area 4 Supported bit and she does it well 👑

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🎀 SYNOPSIS 🎀

int nvme_set_etdas (int fd , bool *changed );

not me giving you the whole signature verbatim, no cap, every space preserved, we respect the source in this house 🫶

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💜 ARGUMENTS 💜

• fd — File descriptor of nvme device 🍓 like, this is the handle to your actual NVMe drive, the lil number you got from opening the thing. that's who we're talking to.
• changed — boolean to indicate whether or not the host behavior support feature had been changed ✨ she's a pointer to a bool, and after the call she'll be holding the tea on whether the host behavior support feature actually got changed or not. so like, she's the receipts. keep her around 👀

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🔥 RETURN 🔥

so here's what you get back, and it's giving very much "depends":

• The nvme command status if a response was received — and for the deets on that status value, go look at enum nvme_status_field 📖
• or -1 with errno set otherwise 💀

ngl bestie, if you see that -1, check errno immediately. don't just vibe and move on. that's the rule 🙈

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and that's the whole page fr fr 🌈

this lil masterpiece lives in the libnvme API manual, it's dated August 2026, and it goes by nvme_set_etdas, section 9 — mwah, take care of her 💖✨🎀