STRUCT FIMC_M2M_DEVICE(9)

💅 struct_fimc_m2m_device(9) — like, the whole vibe

okay so bestie, welcome to the Kernel API Manual entry for struct fimc_m2m_device. this is the glow-up page for the v4l2 memory-to-memory device data, and honestly? it's giving main character energy in the Exynos4-IS camera world ✨

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🌸 NAME 🌸

struct fimc_m2m_device — v4l2 memory-to-memory device data</p> 🎀

like, that's literally it. that's the whole name. short, iconic, no notes 💅

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🦋 SYNOPSIS 🦋

here's the actual struct, copied exactly, no cap:

struct fimc_m2m_device {
    struct video_device     vfd;
    struct v4l2_m2m_dev     *m2m_dev;
    struct fimc_ctx         *ctx;
    int refcnt;
 };

look at her. four members. perfectly balanced. as all things should be 🫶

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✨ Members ✨

💖 the lineup, one by one

• vfd — the video device node for v4l2 m2m mode 👑 this is the actual node your userspace gets to play with, fr fr.
• m2m_dev — v4l2 memory-to-memory device data 🌈 the m2m framework's own lil data blob, pointed at.
• ctx — hardware context data 🔥 where the actual hardware state lives, bestie.
• refcnt — the reference counter ⭐ classic. keep track of who's holding on, don't free it too early, you know the drill.

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👀 SEE ALSO 👀

first off, the receipts — this struct lives in:

Kernel file ./drivers/media/platform/samsung/exynos4-is/fimc-core.h

and it does NOT travel alone. here's the whole friend group, all of them, in order:

• struct fimc_dma_offset(9)
• struct fimc_effect(9)
• struct fimc_scaler(9)
• struct fimc_addr(9)
• struct fimc_vid_buffer(9)
• struct fimc_frame(9)
• struct fimc_vid_cap(9)
• struct fimc_pix_limit(9)
• struct fimc_variant(9)
• struct fimc_drvdata(9)
• struct fimc_dev(9)
• struct fimc_ctrls(9)
• struct fimc_ctx(9)
• fimc_active_queue_add(9)
• fimc_active_queue_pop(9)
• fimc_pending_queue_add(9)
• fimc_pending_queue_pop(9)

like, go read them?? they're all right there?? the whole squad is assembled and everything 🧚

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and that's the page!! 💜 she's sourced from ./drivers/media/platform/samsu... and dated October 2026 — so mark your calendar bestie, and remember: struct fimc_m2m_device(9) ate and left no crumbs 🍓💀✨