STRUCT BDISP_CTX(9)

💅 struct bdisp_ctx(9) — like, the whole vibe, bestie ✨

okay so this is a page straight outta the Kernel API Manual, and it's about struct bdisp_ctx — aka the device context data 🎀. Think of it as the little bag of everything one open context needs to remember. No cap, it's giving backstage-pass energy. 🫶

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🌸 NAME 🌸

struct bdisp_ctx — device context data, periodt. 💖

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✨ SYNOPSIS ✨

like, here's the whole thing, character for character, don't @ me:

struct bdisp_ctx {
    struct bdisp_frame      src;
    struct bdisp_frame      dst;
    u32 state;
    unsigned int            hflip:1;
    unsigned int            vflip:1;
    struct bdisp_dev        *bdisp_dev;
    struct bdisp_node       *node[MAX_NB_NODE];
    dma_addr_t node_paddr[MAX_NB_NODE];
    struct v4l2_fh          fh;
    struct v4l2_ctrl_handler ctrl_handler;
    struct bdisp_ctrls      bdisp_ctrls;
    bool ctrls_rdy;
 };

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👑 Members 👑

okay bestie, let's meet the cast — every single one of them, no skips, iykyk 🌈

• src — source frame properties 🦋 like, where the pixels are coming from.
• dst — destination frame properties ✨ and where they're going. main character destination energy.
• state — flags to keep track of user configuration 🎀 the receipts, basically.
• hflip — horizontal flip 💅 left-right, flipped.
• vflip — vertical flip 🌸 up-down, also flipped. symmetry slay.
• bdisp_dev — the device this context applies to 🔥 the actual hardware bestie this whole thing belongs to.
• node — node array ⭐ yep, an array of them.
• node_paddr — node physical address array 👑 the addresses that go with the nodes above. matching set, cute.
• fh — v4l2 file handle 💜 the v4l2 handle, holding it down.
• ctrl_handler — v4l2 controls handler 🌈 the v4l2 controls handler, doing handler things.
• bdisp_ctrls — bdisp control set 🍓 the whole set of bdisp controls.
• ctrls_rdy — true if the control handler is initialized ✅ literally just a bool telling you the control handler is ready. not me checking this before touching anything 🙈.

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🔥 SEE ALSO 🔥

go look at these next, bestie, they're all connected:

• Kernel file ./drivers/media/platform/st/sti/bdisp/bdisp.h struct
• bdisp_fmt(9)
• bdisp_frame(9)
• bdisp_request(9)
• bdisp_m2m_device(9)
• bdisp_dbg(9)
• bdisp_dev(9)

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💀 reminder that this page lives at ./drivers/media/platform/st/st... in the tree — don't lose it.

okay that's the whole page, you ate that 🫶💅 from the Kernel API Manual, dated October 2026, filed under struct bdisp_ctx(9) — bye bestie, slay your kernel journey ✨🎀🌟