libnvme(9)

💖 libnvme(9) — the API manual, bestie edition 💖

okay so this is a page from the libnvme API manual, and today's main character is struct nvme_id_directives. it's giving "small struct, big responsibilities." let's get into it ✨

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🌸 NAME 🌸

struct nvme_id_directives — the Identify Directive - Return Parameters Data Structure. yes, that whole mouthful is its name. slay 💅

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🎀 SYNOPSIS 🎀

here's the shape of it, exactly as written, no cap:

struct nvme_id_directives {
    __u8 supported[32];
    __u8 enabled[32];
    __u8 rsvd64[4032];
 };

like, look at that struct. it's literally just three fields and one of them is a 4032-byte vibe check 🙈

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🦋 Members 🦋

let's meet the fields, one by one, because they deserve the intro:

• supported — tells you the Identify directive is supported. your "can we do this?" field 💖
• enabled — tells you the Identify directive is Enabled. the "okay but are we actually doing this?" field 🔥
• rsvd64 — Reserved. it's reserved. that's the whole description. don't touch it, don't look at it too long, just let it live its reserved little life 💀

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ngl bestie, the reserved field is bigger than everything else combined — that's just how C structs be 🫶

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and that's the whole page!! short, sweet, and structurally sound 🌈

⭐ cute little sign-off before you close the tab: this was struct nvme_id_directives from the libnvme API manual, dated October 2026. go forth and identify your directives, queen 👑💜