drm_mode_is_420_also(9)

📦 version 7.3.1, in nixpkgs unstable

💅 drm_mode_is_420_also(9)

okay bestie, welcome to the Kernel API Manual — this one's a tiny lil function but she's got main character energy in the display pipeline. her whole thing? figuring out if a videomode can also be supported in YCBCR420 output format, on top of RGB/YCBCR444/422. yes, "also". she's the also girl. iykyk 💖

✨ NAME ✨

drm_mode_is_420_also — checks whether a given videomode can be supported in YCBCR420 output format also (along with RGB/YCBCR444/422). like, not instead of, bestie — also. periodt 🫶

🌸 SYNOPSIS 🌸

bool drm_mode_is_420_also (const struct drm_display_info *display ,
const struct drm_display_mode *mode );

🦋 ARGUMENTS 🦋

  • display — the display under action. literally the one we're doing the vibe check on 💅
  • mode — the video mode to be tested. this is the girl we're asking about 🎀

⭐ RETURN ⭐

Returns true if the mode can be supported in YCBCR420 format, and false if not. no cap, that's the whole tea ☕

🔥 SEE ALSO 🔥

Kernel file ./drivers/gpu/drm/drm_modes.c

and the whole friend group, in order, no gatekeeping:

💀 reminder for the girlies skimming: drm_mode_is_420_only(9) and drm_mode_is_420(9) are her cousins, not her. this one is the also one. don't mix them up fr fr 🙈

and that's the whole page, bestie!! 🧚 source lives at ./drivers/gpu/drm, dated October 2026, and the page signs off as drm_mode_is_420_also(9). slay, go read your modes 💜🎀✨

📦 where this page comes from