nvme_get_features_host_id(2)

💖 nvme_get_features_host_id ✨

okay bestie, so this is a little function from the libnvme API manual and it's literally called nvme_get_features_host_id — and yes, it does exactly what it says on the tin, no cap. 🫶

It goes and gets the host id feature. That's it. That's the whole vibe. 💅

• nvme_get_features_host_id — Get host id feature 🌸

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📋 SYNOPSIS

int nvme_get_features_host_id (int fd , enum nvme_get_features_sel sel ,
bool exhid , __u32 len , __u8 *hostid );

like... five whole arguments, she's high maintenance but she's worth it 💜

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🎀 ARGUMENTS

• fd — File descriptor of the nvme device. this is your lil ✨handle✨ to the drive, you gotta have it, periodt.
• sel — Select which type of attribute to return, see enum nvme_get_features_sel. basically you're telling it which flavour of the attribute you want back 🍓
• exhid — Enable Extended Host Identifier. turn this on and you get the extended glow-up version of the host id 👑
• len — Length of hostid. how much room your buffer's got, fr fr.
• hostid — Buffer for returned host ID. this is where the answer lands when it comes back, so like… make sure it's big enough bestie 😭

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🔥 RETURN

So here's the tea ☕ — you get back:

• The nvme command status if a response was received (see enum nvme_status_field) ✅
• Or -1 with errno set otherwise 💀

not me acting like -1 is a personality trait — it's not, it's an error. always check errno when you see it. iykyk. 🙈

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and that's the whole page, angel — every flag, every arg, every byte of it, preserved with love 🌈

this was nvme_get_features_host_id(2) from the libnvme API manual, and the version we're repping is dated July 2026 ✨ stay hydrated, check your return values, and slay 💅🦋💖