STRUCT RCAR_DU_PLANE_STATE(9)

✨ struct rcar_du_plane_state(9) ✨

okay so bestie, this is a page from the Kernel API Manual and it's literally all about struct rcar_du_plane_state — the driver-specific plane state. that's it, that's the vibe. it's giving "small struct, big responsibilities" 💅

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🌸 NAME 🌸

struct rcar_du_plane_state — driver-specific plane state 🎀

like, the state that belongs to this driver specifically, not the generic DRM one. iykyk.

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✨ SYNOPSIS ✨

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

struct rcar_du_plane_state {
    struct drm_plane_state state;
    const struct rcar_du_format_info *format;
    int hwindex;
    enum rcar_du_plane_source source;
    unsigned int colorkey;
 };

look at her. iconic. five fields, zero notes. 🦋

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💖 Members 💖

okay so let's go through the members one by one, bestie, no skipping:

• state — the base DRM plane state. that's the generic one it's built on top of 🫶
• format — info about the pixel format the plane is using. it's a const struct rcar_du_format_info *, so pointer to const, we're being polite 🔥
• hwindex — the 0-based hardware plane index. and heads up: -1 means unused. so if you see a -1 in there, that plane is lowkey just vibing, doing nothing 💀
• colorkey — the value of the plane colorkey property 🎨

ngl the struct also has a source field of type enum rcar_du_plane_source up in the synopsis, but this page doesn't describe it, so i'm not gonna make anything up about it. that's a mystery for another manpage 🧚

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🌈 SEE ALSO 🌈

go look at the kernel file, bestie, that's where the real tea is:

• ./drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.h

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and that's the whole page!! short and sweet, main character energy honestly 👑

sign-off time: this one comes from ./drivers/gpu/drm/renesas/rcar-du and it's dated October 2026 — so yeah, mark your calendars, bestie 🗓️💜