STRUCT BDISP_FRAME(9)

💅 struct bdisp_frame(9) 💅

ok so this is a page from the Kernel API Manual, bestie, and it's literally all about struct bdisp_frame — aka the vibe check container for frame properties 🎀. Yes we're in the kernel, yes we're in the media platform layer, yes it's giving main character energy. Let's go 🦋

---

✨ NAME ✨

struct bdisp_frame — frame properties 🌸

---

🫶 SYNOPSIS 🫶

struct bdisp_frame {
    u32 width;
    u32 height;
    const struct bdisp_fmt  *fmt;
    enum v4l2_field         field;
    u32 bytesperline;
    u32 sizeimage;
    enum v4l2_colorspace    colorspace;
    struct v4l2_rect        crop;
    dma_addr_t paddr[4];
};

no cap, that's the whole struct, copy it exactly, don't be weird about it 💜

---

🧚 Members 🧚

okay so let's meet the squad, one field at a time 👑

• width — the frame width (including padding!). padding is invited to the party too, okurrr 💅
• height — the frame height, and yes, padding counts here as well. she's tall, she's padded, she's iconic 🔥
• fmt — a pointer to the frame format descriptor. all the format lore lives over there, this is just the little arrow pointing at it 🎀
• field — the frame / field type. enum v4l2_field just so we're clear about which one she is 💖
• bytesperline — the stride of the 1st plane. one plane, one stride, no notes ✨
• sizeimage — the image size in bytes. the byte count baby, that's the whole deal 🌸
• colorspace — the colorspace. enum v4l2_colorspace said what she said 🌈
• crop — the crop area. struct v4l2_rect shaped, naturally 🦋
• paddr — the image physical addresses per plane, and the mapping is lowkey specific so pay attention: [0]=RGB/Y and [1]=Cb/Cr, then ... because there's more to the story and the page just trails off into the [4] of it all 😭🫶

fr fr, paddr[4] means four slots, and slot zero and slot one have very specific jobs. don't shuffle them, bestie 💀

---

👀 SEE ALSO 👀

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

that's the whole friend group, go read all of them, iykyk 💖✨

---

okay that's the page, and for the cute sign-off: this one's source lives at ./drivers/media/platform/st/st..., it's stamped October 2026, and it's filed under struct bdisp_frame(9) — periodt, slay, go touch some registers 🧚💜