libnvme(9)

๐Ÿ“ฆ version 3.2, in arch rolling

๐ŸŒธ libnvme โ€” section 9, the API Manual, bestie ๐Ÿ’…

okay so picture this: you're deep in the libnvme API manual, section 9, and you've stumbled onto a lil struct called nvme_reachability_group_desc. it's giving "Reachability Group Descriptor" and honestly? iconic. let's get into it โœจ


โœจ NAME โœจ

struct nvme_reachability_group_desc โ€” literally the Reachability Group Descriptor, no cap ๐Ÿซถ


๐ŸŽ€ SYNOPSIS ๐ŸŽ€

here's the whole vibe, character for character, do not touch:

struct nvme_reachability_group_desc {
    __le32 rgid;
    __le32 nnid;
    __le64 chngc;
    __u8 rsvd16[16];
    __le32 nsid[];
};

๐Ÿซถ Members ๐Ÿซถ

the way this struct is just five fields of pure main character energy โ€” let's meet them ๐Ÿ’–

  • rgid โ€” the Reachability Group ID. that's her whole identity, okurr ๐Ÿ‘‘
  • nnid โ€” Number of NSID Values. yes bestie, it's keeping count, someone has to ๐Ÿงฎ
  • chngc โ€” Change Count. it's tracking the changes like a true gossip connoisseur ๐Ÿ’€
  • rsvd16 โ€” Reserved. she's reserved, she said "not my moment" and left the space empty, respect ๐Ÿ™ˆ
  • nsid โ€” the Namespace Identifier List. the flexible array member doing the absolute most at the end of the struct, slay ๐ŸŒˆ

lowkey reminder: rgid and nnid and chngc are little-endian typed (__le32, __le64), rsvd16 is a __u8 array of 16, and nsid is a flexible array of __le32 โ€” keep those exactly as written, no editing the code, periodt ๐Ÿ’…

and that's the whole page, bestie โ€” short, sweet, and fully ate ๐ŸŒธ this was libnvme section 9, the API Manual, and the page itself is dated October 2026, signed off with struct nvme_reachability_group_desc and libnvme(9) at the bottom. mwah, go forth and read your structs ๐Ÿฉท๐Ÿฆ‹๐Ÿ’œ

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