libnvme(9)

💎 libnvme(9) — API Manual 💎

okay bestie, so this page is from the libnvme API manual, and it's about one very specific little struct, and honestly it's giving "niche but iconic" 🎀

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✨ NAME ✨

struct tcg_l0_ruby — the Ruby SSC feature, and its feature code is 0x0304 👑

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🦋 SYNOPSIS 🦋

here's the whole thing laid out, no cap, character for character:

struct tcg_l0_ruby {
    __be16 base_comid;
    __be16 num_comids;
    __u8 flags;
    __be16 num_locking_sp_admin_auth;
    __be16 num_locking_sp_user_auth;
    __u8 initial_cpin_sid_ind;
    __u8 initial_cpin_sid_revert;
    __u8 rsvd11[5];
 };

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💅 Members 💅

these are the fields, one by one, and yes we're doing all of them:

• base_comid — the Base ComID, like the starting point of the ComID situation 🔥
• num_comids — the Number of ComIDs. how many we got? this many 💜
• flags — the Flags, and if you wanna know what they mean, go look at enum tcg_l0_ruby_flags 👀 iykyk
• num_locking_sp_admin_auth — Number of Locking SP Admin authorities 🫶
• num_locking_sp_user_auth — Number of Locking SP User authorities 🌸
• initial_cpin_sid_ind — the Initial C_PIN_SID PIN indicator ⭐
• initial_cpin_sid_revert — the Behavior of C_PIN_SID PIN upon TPer revert 😭 (yes, that's the actual thing it tracks)
• rsvd11 — Reserved. it's just sitting there, being reserved, main character energy but make it __u8 rsvd11[5]; 💀

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🌈 Description 🌈

so where does this whole thing come from? TCG Ruby SSC 1.00, section 3.1.1.5. literally that's the citation, periodt 📚

ngl bestie, if you're cross-referencing this against the spec, section 3.1.1.5 is your bestie. go off 💖

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okay that's the whole page!! 🧚 source/version vibes: this is struct tcg_l0_ruby inside libnvme(9), dated October 2026 — mwah, slay, bye 🍓💜