drm_mode_gamma_get_ioctl(9)

📦 version 7.3.1, in nixpkgs unstable

💖 NAME 💖

okay bestie, welcome to the drm_mode_gamma_get_ioctl(9) page from the Kernel API Manual ✨ this one is literally called drm_mode_gamma_get_ioctl — get the gamma table 🎀

✨ SYNOPSIS ✨

int drm_mode_gamma_get_ioctl (struct drm_device *dev , void *data ,
       struct drm_file *file_priv );

🫶 ARGUMENTS 🫶

  • dev — DRM device 🖥️ the main character itself.
  • data — ioctl data 📦 the payload bestie.
  • file_priv — DRM file info 🗂️ the file-side details.

🌸 DESCRIPTION 🌸

so what it does: it copies the current gamma table into the storage provided 💅 no cap, that’s the whole vibe.

it also provides the gamma table size the driver expects, which can be used to size the allocated storage 📏✨ so you know how much room to give it.

and yeah — it’s called by the user via ioctl 🫶 iykyk.

🎀 RETURN 🎀

Zero on success, negative errno on failure — that’s it, that’s the rule 💀✨

🦋 SEE ALSO 🦋

mwah 💖 source/version: ./drivers/gpu/drm; date: October 2026 — that’s the cute lil footer, bestie, all mentioned and slayed 🎀✨

📦 where this page comes from