STRUCT RPMSG_HEAD(9)

💖 struct rpmsg_head(9) 💖

okay so bestie, this is a page from the Kernel API Manual, section 9, and it's all about struct rpmsg_head — literally the header structure for rpmsg. it's giving "small but iconic" energy, and honestly? obsessed. 🎀

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✨ NAME ✨

struct rpmsg_head — the rpmsg header structure, periodt 💅

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🌸 SYNOPSIS 🌸

here's the whole vibe, verbatim, no cap:

struct rpmsg_head {
    u8 cate;
    u8 major;
    u8 minor;
    u8 type;
    u8 cmd;
    u8 reserved[5];
 };

like… six little fields and five of them are just vibes (the reserved ones, we'll get there 🫶).

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🦋 Members 🦋

okay so let's meet the cast, member by member, main character energy only:

• cate — the category. yep, that's it, that's the whole description. it's the category, bestie 🐛
• major — the major version. iconic, no notes.
• minor — the minor version. the little sibling of major, we stan 💜
• type — the message type, and it's one of A/B/C. choose your fighter ⭐
• cmd — the message command. the instruction. the "do the thing" field 🔥
• reserved — reserved space. it's literally just sitting there holding space for the future, and honestly? same 😭

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🧚 SEE ALSO 🧚

go read these next, iykyk:

• Kernel file ./sound/soc/fsl/imx-pcm-rpmsg.h
• struct param_s(9)
• struct rpmsg_info(9)

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💀 real talk: those last five bytes in reserved[5] are reserved, so don't be out here stuffing your own data in them, bestie. reserved means reserved. leave the icon alone. 🙈

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okay that's the whole page! source path is ./sound/soc/fsl, it's dated October 2026, and the page itself is struct rpmsg_head(9) — go forth and slay your rpmsg headers, bestie 🌈💖✨