drm_helper_m...ll_fb_struct(9)

📦 version 7.3.1, in nixpkgs unstable

💅 drm_helper_mode_fill_fb_struct(9) — bestie's guide to the Kernel API Manual

Okay so bestie, we're in the Kernel API Manual and this page is literally called drm_helper_m...ll_fb_struct(9) (yes the title is truncated, no I will not be fixing it, that's just how it's printed 💀). Buckle up, it's a tiny one but it's iconic.

✨ NAME ✨

drm_helper_mode_fill_fb_struct — fill out framebuffer metadata 🎀

Like, it's a little helper whose entire personality is pre-filling the metadata fields on your framebuffer. That's it. That's the job. Slay.

🦋 SYNOPSIS 🦋

void drm_helper_mode_fill_fb_struct (struct drm_device *dev , struct
drm_framebuffer *fb , const struct drm_format_info *info , const struct
drm_mode_fb_cmd2 *mode_cmd );

Four params, void return, no cap. Copy it exactly, she's fragile 💜

🌸 ARGUMENTS 🌸

  • dev — the DRM device, the main character in this whole situation 👑
  • fb — the drm_framebuffer object you're filling out, i.e. the glow-up recipient ✨
  • info — pixel format information, all the aesthetic details of the pixels 🎨
  • mode_cmd — the metadata straight from the userspace fb creation request, iykyk 🙈

💖 DESCRIPTION 💖

So here's the tea: this helper can be used in a driver's fb_create callback to pre-fill the fb's metadata fields. That's literally it, bestie — it's a pre-fill. Not a full fill. Pre. It gets the metadata looking cute before the rest of the process does its thing 🫶

Note the word can — the original says this helper can be used in a driver's fb_create callback. Not "must", not "always". We're respecting the wording, periodt 💅

🔥 SEE ALSO 🔥

Go read all of them, they're the friend group of this function and honestly they all ate 🌈⭐

Big kiss, bye 💋 — this page came to you from ./drivers/gpu/drm, dated October 2026, and it's the drm_helper_m...ll_fb_struct(9) page we've been stanning the whole time 🧚‍♀️💜

📦 where this page comes from