ffb_setcolreg(9)

📦 version 7.3.1, in nixpkgs unstable

💅 ffb_setcolreg(9) 💅

✨ NAME ✨

okay so ffb_setcolreg — sets a color register. periodt. this one lives in the Kernel API Manual, and that's the whole name moment bestie 💖

🌈 SYNOPSIS 🌈

here's the exact signature, no cap:

       int ffb_setcolreg (unsigned regno , unsigned red , unsigned green ,
       unsigned blue , unsigned transp , struct fb_info *info );

🎀 ARGUMENTS 🎀

these are the args, every single one, no skips:

  • regno — boolean, 0 copy local, 1 get_user function. iykyk.
  • red — frame buffer colormap structure.
  • green — the green value which can be up to 16 bits wide.
  • blue — the blue value which can be up to 16 bits wide.
  • transp — if supported the alpha value which can be up to 16 bits wide.
  • info — frame buffer info structure.

🦋 SEE ALSO 🦋

the kernel file is ./drivers/video/fbdev/ffb.c — go peek at the related besties:

source/version: ./drivers/video/fbdev · date: October 2026 — mwah, mwah 💖🎀

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