STRUCT SCSI_VPD(9)

🦋 struct scsi_vpd(9) — Kernel API Manual 🦋

okay so bestie, welcome to struct scsi_vpd(9) 💖 this is the kernel API manual, and today's main character is a lil struct that holds SCSI Vital Product Data. yes, that VPD. the vibe is immaculate, the facts are exact, let's go ✨

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🌸 NAME 🌸

struct scsi_vpd — SCSI Vital Product Data, literally what it says on the tin 🎀

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✨ SYNOPSIS ✨

struct scsi_vpd {
    struct rcu_head rcu;
    int len;
    unsigned char   data[];
};

that's the whole struct, no cap, she's small but she's doing the work 💅

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🫶 Members 🫶

• rcu — this one's for kfree_rcu. yeah. that's the entire job description and honestly? iconic.
• len — length in bytes of data. the receipts. the actual size. don't sleep on her 📏
• data — the VPD data itself, as defined in various T10 SCSI standard documents. if you know, you know 🧚

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👑 SEE ALSO 👑

• Kernel file ./include/scsi/scsi_device.h — go read it bestie, it's giving source of truth 📂
• shost_for_each_device(9)
• __shost_for_each_device(9)
• scsi_device_is_pseudo_dev(9)
• scsi_device_supports_vpd(9)

all of these are linked, all of these matter, do not skip a single one 🙈

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ngl the whole thing is basically a header plus a flexible array member, and yet she ate. periodt. 🌈

with love from ./include/scsi 🍓 — October 2026, the date this page was born, mwah 💜