STRUCT DRM_MODE_RECT(9)

✨ struct drm_mode_rect(9) ✨

okay so bestie, welcome to the struct drm_mode_rect page from the Kernel API Manual 💖 — yes it's a manual page, yes it's about a rectangle, and no, it's not boring, because this little guy is doing main character energy work in the DRM subsystem. Let's get into it 🎀

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🌸 NAME 🌸

struct drm_mode_rect — a two dimensional rectangle, fr fr 🟪

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✨ SYNOPSIS ✨

struct drm_mode_rect {
    __s32 x1;
    __s32 y1;
    __s32 x2;
    __s32 y2;
 };

like, that's the whole thing. four __s32s. iconic minimalism 💅

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🦋 Members 🦋

• x1 — the horizontal starting coordinate, and it's inclusive — so yes, this one counts 🫶
• y1 — the vertical starting coordinate, also inclusive 💜
• x2 — the horizontal ending coordinate, but this one is exclusive — she's not included, boundaries babe 😭
• y2 — the vertical ending coordinate, also exclusive — same deal, not counted 🙈

ngl the inclusive/exclusive thing is the kind of detail that will bite you if you forget it, so like… don't forget it 💀

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🎀 Description 🎀

So the drm subsystem uses struct drm_rect to manage rectangular areas internally, and this struct, struct drm_mode_rect, is how they export it to user-space 🌈✨

Currently it's used by the drm_mode_atomic blob property FB_DAMAGE_CLIPS. That's it, that's the tea 🍓

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👑 SEE ALSO 👑

okay this list is long, so buckle up bestie — literally every one of these is coming with us, no skips 💖

• Kernel file ./include/uapi/drm/drm_mode.h overview(9) 📄
• struct drm_mode_modeinfo(9)
• struct drm_mode_get_plane(9)
• struct drm_mode_get_connector(9)
• struct drm_mode_property_enum(9)
• struct drm_mode_get_property(9)
• struct drm_mode_fb_cmd2(9)
• enum drm_colorop_type(9)
• enum drm_colorop_lut3d_interpolation_type(9)
• enum drm_colorop_lut1d_interpolation_type(9)
• struct drm_plane_size_hint(9)
• struct hdr_metadata_infoframe(9)
• struct hdr_output_metadata(9)
• DRM_MODE_PAGE_FLIP_EVENT(9)
• DRM_MODE_PAGE_FLIP_ASYNC(9)
• DRM_MODE_PAGE_FLIP_FLAGS(9)
• struct drm_mode_create_dumb(9)
• DRM_MODE_ATOMIC_TEST_ONLY(9)
• DRM_MODE_ATOMIC_NONBLOCK(9)
• DRM_MODE_ATOMIC_ALLOW_MODESET(9)
• DRM_MODE_ATOMIC_FLAGS(9)
• struct drm_mode_create_blob(9)
• struct drm_mode_destroy_blob(9)
• struct drm_mode_create_lease(9)
• struct drm_mode_list_lessees(9)
• struct drm_mode_get_lease(9)
• struct drm_mode_revoke_lease(9)
• struct drm_mode_closefb(9)

like… go read them, iykyk 😤📚

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and that's the whole page, bestie! this one lives in ./include/uapi/drm and the version/date on the tin is October 2026 — so yeah, future vibes only 🦋✨ go forth and draw your inclusive-inclusive-exclusive-exclusive rectangles, periodt 💅🫶