fb_match_mode(9)

💅 fb_match_mode(9)

okay so bestie, welcome to the Kernel API Manual — this one's a little cutie from the framebuffer corner of the kernel and honestly it's giving "find my exact match" energy. It lives in fb_match_mode(9) and it does exactly one thing, but it does it flawlessly ✨

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🎀 NAME

fb_match_mode — find a videomode which exactly matches the timings in var 💖

like, exactly. not "close enough", not "vibes are similar" — we're talking precise timing match, no cap.

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🌸 SYNOPSIS

const struct fb_videomode * fb_match_mode (const struct
fb_var_screeninfo *var , struct list_head *head );

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🦋 ARGUMENTS

• var — pointer to struct fb_var_screeninfo 🫶 this is the var you're trying to match against, the main character of the search ngl
• head — pointer to struct list_head of modelist ✨ the list you're digging through, aka where all the candidate modes are chilling

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⭐ RETURN

Returns a struct fb_videomode, or NULL if none found 😭 — so yeah, if your timing match doesn't exist in that list, you get nothing back. brutal but fair.

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👑 SEE ALSO

okay so there's a whole friend group here, they all hang out together:

• Kernel file ./drivers/video/fbdev/core/modedb.c 📁
• fb_try_mode(9)
• fb_find_mode(9)
• fb_var_to_videomode(9)
• fb_videomode_to_var(9)
• fb_mode_is_equal(9)
• fb_find_best_mode(9)
• fb_find_nearest_mode(9)
• fb_add_videomode(9)
• fb_delete_videomode(9)
• fb_destroy_modelist(9)
• fb_videomode_to_modelist(9)

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💀 friendly reminder that "exactly matches" means exactly. if you wanted "eh, close enough", go bother fb_find_nearest_mode(9) instead, iykyk.

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alright bestie that's the whole page, mwah 💋 — this one's from ./drivers/video/fbdev/core, dated October 2026, and it's fb_match_mode(9) signing off 🎀✨💜