drm_mode_init(9)

📦 version 7.3.1, in nixpkgs unstable

✨ drm_mode_init ✨

okay so bestie, welcome to the Kernel API Manual 💖 — this is drm_mode_init(9), and honestly it's giving "small function, big responsibilities." Let me break it down for you 🫶

🌸 NAME 🌸

drm_mode_init — initialize the mode from another mode 💅

⭐ SYNOPSIS ⭐

void drm_mode_init (struct drm_display_mode *dst , const struct
       struct drm_display_mode *src );
wait, hold up 👀 — I kept that exactly as the page has it, line break and all. So yes, the const struct sits on its own line and then struct drm_display_mode *src follows. That's the original, no cap. Don't come for me, I just work here 😭

🎀 ARGUMENTS 🎀

  • dst — the mode you're gonna overwrite 👑 (she's the destination, she's about to get a whole new personality)
  • src — the mode you're copying from 🌈 (the source of truth, the blueprint, the moment)

💜 DESCRIPTION 💜

So what does she actually do? She copies an existing mode into another mode — and here's the icon part ✨: she zeroes the list head of the destination mode.

Why does that matter?? Because if you're working with on-stack modes, that list head could literally be sitting there full of stack garbage 💀 and nobody wants that. So drm_mode_init is typically used to guarantee the list head isn't left holding random stack junk.

it's giving "tiny function, huge peace of mind" fr fr 🧚

🦋 SEE ALSO 🦋

First things first, the kernel file lives here:

  • ./drivers/gpu/drm/drm_modes.c

and now, the whole friend group 💖 — every single one of these, no skips:

like... that's the entire extended universe 😭 and they all showed up. periodt 💅

okay that's the whole page, bestie 🎀 — go forth and don't leave your list heads full of stack garbage. and one last lil sign-off: this one comes from the source spot ./drivers/gpu/drm and it's dated October 2026 🌸 see u in the next manpage 💖✨

📦 where this page comes from