i810fb_getcolreg(9)

📦 version 7.3.1, in nixpkgs unstable

💅 i810fb_getcolreg(9) 💅

okay so bestie, welcome to the Kernel API Manual — section 9, we're deep in kernel-doc territory, and this little function is the whole vibe of this page. it's i810fb_getcolreg, and yes it's exactly as iconic as it sounds ✨

🎀 NAME 🎀

i810fb_getcolreg — literally just gets the red, green and blue values of the hardware DAC. that's the whole job. she's a getter. she gets. periodt 💅

🦋 SYNOPSIS 🦋

int i810fb_getcolreg (u8 regno , u8 *red , u8 *green , u8 *blue , u8
*transp , struct fb_info *info );

that's the signature bestie, copy it exactly, don't you dare touch the spacing 🫶

🌸 ARGUMENTS 🌸

  • regno — the DAC index. this is the one you point at to say "hey, give me that register's colors" ✨
  • red — red. that's it. that's the description. red 💖
  • green — green. again, iconic levels of brevity 🌈
  • blue — blue. the trifecta is complete 💙
  • transp — transparency (alpha). the spicy fourth channel 👑
  • info — pointer to fb_info. the main character struct, as always 🎀

⭐ DESCRIPTION ⭐

so what actually happens? Gets the red, green and blue values of the hardware DAC as pointed by regno, and writes them to red, green and blue respectively. lowkey simple, highkey useful — she reads the hardware and fills your pointers with the tea 🍓

that's it, no cap. no hidden behavior, no extra lore. it's giving "small function, big responsibility" 💅

🔥 SEE ALSO 🔥

okay this is the part where the group chat gets long, because this function rolls with a whole squad. source file is in the kernel at ./drivers/video/fbdev/i810/i810_main.c — and here's everybody else who lives there with her, all of them section (9):

like, twenty-plus besties. she's not alone, she's in a friend group 💜

ngl bestie, if you're poking around i810 fbdev stuff, the name says it — the i810_* crowd all hangs out in that same file, iykyk 🧚

🦋 and that's the page! brought to you by the source path ./drivers/video/fbdev/i810 and dated October 2026 — stay slay, stay in section 9, and remember: she only gets the DAC values, she doesn't set them. know the difference 💖✨🎀

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