libnvme(2)

💖 libnvme — struct nvme_eom_lane_desc 💖

okay bestie, so this is a page from the libnvme API manual, section 2, and it's all about one little struct. no cap, it's giving "very specific data layout" energy and we're gonna stan every single byte. 🦋

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✨ NAME ✨

struct nvme_eom_lane_desc — EOM Lane Descriptor

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🌸 SYNOPSIS 🌸

struct nvme_eom_lane_desc {
    __u8 rsvd0;
    __u8 mstatus;
    __u8 lane;
    __u8 eye;
    __le16 top;
    __le16 bottom;
    __le16 left;
    __le16 right;
    __le16 nrows;
    __le16 ncols;
    __le16 edlen;
    __u8 rsvd18[14];
    __u8 eye_desc[];
};

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👑 Members 👑

• rsvd0 — reserved. it's just vibing there, doing absolutely nothing, and honestly? respect. 💅
• mstatus — the Measurement Status.
• lane — the Lane number. which lane are we in, bestie? this one.
• eye — the Eye number. yes that's the actual field name. iconic. 👁️
• top — absolute number of rows from center to the top edge of the eye.
• bottom — absolute number of rows from center to the bottom edge of the eye.
• left — absolute number of rows from center to the left edge of the eye.
• right — absolute number of rows from center to the right edge of the eye.
• nrows — Number of Rows.
• ncols — Number of Columns.
• edlen — Eye Data Length.
• rsvd18 — reserved. again. it's the quiet kid in the back of the struct, not causing problems, we love that for it. 🎀
• eye_desc — Printable Eye, Eye Data, and any Padding. the flexible array member, the main character, the one with the plot. ✨

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fr fr, eye_desc[] is a flexible array member — it lives at the very end of the struct and it's where the actual eye data lands. everything above it is just the little desk setup before the big presentation. 💖

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and that's the whole page, bestie — struct inspected, every member accounted for, not a single one skipped. 🫶

this was rendered from the libnvme API manual, from that July 2026 edition, and the page itself was all about struct nvme_eom_lane_desc. slay, that's a wrap. 💀✨🌈