drm_format_i...plane_height(9)

✨ drm_format_i...plane_height(9) ✨

okay so this is a page from the Kernel API Manual (yes, the kernel has lore, and yes, it's sending us mail 💌) and it's all about one smol but iconic function: drm_format_info_plane_height. bestie, if you've ever wondered "how tall is this plane, actually?" — this is the girl for you 🫶

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🌸 NAME 🌸

drm_format_info_plane_height — the height of the plane, given the first plane. literally that's the whole vibe: you tell it the height of plane zero, it tells you how tall your plane is ✨

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🌈 SYNOPSIS 🌈

int drm_format_info_plane_height (const struct drm_format_info *info ,
       int height , int plane );

no cap, that's the whole signature 💅

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🎀 ARGUMENTS 🎀

• info — the pixel format info 🖼️ like, the whole personality of the format. it's a const struct drm_format_info *.
• height — the height of the first plane. key word: first. that's the reference point, the main character 👑
• plane — the plane index. which plane are we asking about, bestie? 🔢

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💖 RETURN 💖

the height of plane, given that the height of the first plane is height. that's it, that's the answer — an int. slay ✨

ngl it's a very short page, but it's doing exactly what it says. no surprises, no drama, just math for plane heights 🧚

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🔥 SEE ALSO 🔥

• Kernel file ./include/drm/drm_fourcc.h — the source of truth, go read it iykyk 📖
• DRM_FORMAT_MAX_PLANES(9) — the ceiling, literally 🏔️
• struct drm_format_info(9) — the struct herself 💁
• drm_format_info_is_yuv_packed(9)
• drm_format_info_is_yuv_semiplanar(9)
• drm_format_info_is_yuv_planar(9)
• drm_format_info_is_yuv_sampling_410(9)
• drm_format_info_is_yuv_sampling_411(9)
• drm_format_info_is_yuv_sampling_420(9)
• drm_format_info_is_yuv_sampling_422(9)
• drm_format_info_is_yuv_sampling_444(9)
• drm_format_info_plane_width(9) — the height's bestie, the width one 🦋

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okay that's the whole thing, you ate that 🍓 mwah 💋

sign-off time, bestie: this page lives in ./include/drm, dated October 2026 💜 ty for reading, go touch some planes ✨🎀