drm_format_i...block_height(9)

💅 drm_format_i...block_height(9) 💅

okay so this is a page from the Kernel API Manual and bestie, it's a tiny one but it matters. we're talking about one (1) function that tells you how tall a block is. that's it. that's the whole vibe. and honestly? iconic for that.

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✨ NAME ✨

drm_format_info_block_height — height in pixels of a block 🎀

like literally the height. in pixels. of a block. no cap.

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✨ SYNOPSIS ✨

unsigned int drm_format_info_block_height (const struct drm_format_info
                                           *info , int plane );

so you call it, you hand it two things, and it gives you back an unsigned int. that's the shape of it. slay.

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✨ ARGUMENTS ✨

• info — the pixel format info 🫶 this is your const struct drm_format_info * bestie, just your regular pixel format info, nothing spooky
• plane — plane index 💫 which plane you're asking about, as an int. yes, an index. yes, it's a number. we been knew.

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✨ RETURN ✨

it returns the height in pixels of a block, and the value depends on the plane index 🔥 so like, different plane, potentially different answer. that's the whole deal.

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✨ SEE ALSO ✨

go off, related functions 👑 also there's a kernel file in here so don't come for me:

• Kernel file ./drivers/gpu/drm/drm_fourcc.c
• drm_mode_legacy_fb_format(9)
• drm_driver_legacy_fb_format(9)
• drm_driver_color_mode_format(9)
• drm_format_info(9)
• drm_get_format_info(9)
• drm_format_info_block_width(9)
• drm_format_info_bpp(9)
• drm_format_info_min_pitch(9)

notice how there's a block_width in there and this page is block_height? yeah. they're a matching set. a duo. main character energy from both of them honestly 💜

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lowkey a wholesome reminder that some of the most useful functions in the kernel are also the shortest manpages. not everything needs to be a whole essay. sometimes you just want to know how tall the block is. 💅

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that's the whole page bestie, no filler, no fluff, just block height facts 🌈

this one lives under ./drivers/gpu/drm 🌸 and the version/date stamp on it is October 2026 — marking your calendars accordingly, iykyk ⭐💖