drm_mode_match(9)

📦 version 7.3.1, in nixpkgs unstable

💅 drm_mode_match(9) — the tea on mode matching

okay bestie, welcome to the Kernel API Manual entry for drm_mode_match 🎀 this one lives in the DRM (direct rendering manager) corner of the kernel, and it's literally just the "are these two modes the same, or like... same-ish?" check. no cap.

✨ SYNOPSIS ✨

bool drm_mode_match (const struct drm_display_mode *mode1 , const struct
       drm_display_mode *mode2 , unsigned int match_flags );

it hands you back a bool, takes two const struct drm_display_mode * pointers (mode1 and mode2), plus a unsigned int match_flags that tells it how equal you want them to be. cute, right? 🦋

🌸 ARGUMENTS 🌸

  • mode1 — the first mode, aka contestant number one 💖
  • mode2 — the second mode, contestant number two 🫶
  • match_flags — the vibe check instructions, like which parts need to match (the DRM_MODE_MATCH_* family of flags) 👑

💜 DESCRIPTION 💜

so the whole gig is: check to see if mode1 and mode2 are equivalent. that's it. that's the function. it's giving "are you the same person or just twins" energy ✨

⭐ RETURN ⭐

True if the modes are (partially) equal, false otherwise. slay 💅 — partial equality is allowed because of those match_flags, iykyk.

🔥 SEE ALSO 🔥

the kernel file that holds all this magic:

  • ./drivers/gpu/drm/drm_modes.c

and the whole friend group of related calls (no gatekeeping here, bestie, we list all of them 🫶):

🧚 a lil sign-off 🧚

this iconic page comes to you from ./drivers/gpu/drm, dated October 2026, and yeah — it's drm_mode_match(9), the manual page herself. periodt. 🌈💖

📦 where this page comes from