STRUCT MXC_JPEG_FMT(9)

💖 struct mxc_jpeg_fmt(9) 💖

okay bestie, welcome to the Kernel API Manual — this is the whole rundown on struct mxc_jpeg_fmt, and it's literally the driver's internal color format data. yes, internal. it's giving backstage-pass energy, not main-character-public-API energy. 🎀

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✨ NAME ✨

struct mxc_jpeg_fmt — the driver's internal color format data. that's it, that's the vibe check. 🌸

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🦋 SYNOPSIS 🦋

here's the whole struct, no cap, copy it exactly how it is:

struct mxc_jpeg_fmt {
    const char                              *name;
    u32 fourcc;
    enum v4l2_jpeg_chroma_subsampling       subsampling;
    int nc;
    int depth;
    int mem_planes;
    int comp_planes;
    int h_align;
    int v_align;
    u32 flags;
    u8 precision;
    u8 is_rgb;
 };

like, look at all those fields. she's organized. she's got range. 💅

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👑 Members 👑

okay so every single member, one by one, and what she actually does:

• name — the format description. just the lil' label so you know who's who. 🏷️
• fourcc — the fourcc code, and it's 0 if it's not applicable. so if you see a zero, that's a "not applicable bestie", not a bug. 🙈
• subsampling — the subsampling of jpeg components. chroma business. 🌈
• nc — number of color components. how many components are invited to the party. 🎉
• depth — number of bits per pixel. 🍓
• mem_planes — number of memory planes — and heads up, it's 1 for packed formats. ✨
• comp_planes — number of component planes, which includes the alpha plane (1 to 4). like, alpha counts, don't forget her. 💜
• h_align — horizontal alignment order — align to 2^h_align. 🔥
• v_align — vertical alignment order — align to 2^v_align. 🔥
• flags — flags describing format applicability. the receipts, basically. 🧾
• precision — jpeg sample precision. 🎯
• is_rgb — is an RGB pixel format. yes/no, that's the whole job. ⭐

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🌟 SEE ALSO 🌟

go read these next, iykyk:

• Kernel file ./drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.h struct mxc_jpeg_sof_comp(9), struct mxc_jpeg_sof(9), struct mxc_jpeg_sos_comp(9), struct mxc_jpeg_sos(9)

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fr fr, that's the whole page. struct's done, fields are done, you're basically a mxc-jpeg format expert now. 💀💖

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and that's a wrap, bestie 🫶 — this lil' page came from ./drivers/media/platform/nxp/i..., dated October 2026, and yeah, the footer still says struct mxc_jpeg_fmt(9) because legends never change their name. slay. 💅✨