drm_gem_fb_create_handle(9)

📦 version 7.3.1, in nixpkgs unstable

💅 drm_gem_fb_create_handle(9) 💅

okay so bestie, welcome to the Kernel API Manual — today's main character is drm_gem_fb_create_handle, and honestly? she's a little legend. let's get into it ✨

🌸 NAME 🌸

drm_gem_fb_create_handle — Create handle for GEM backed framebuffer 🎀

✨ SYNOPSIS ✨

int drm_gem_fb_create_handle (struct drm_framebuffer *fb , struct
drm_file *file , unsigned int *handle );

like, that's the whole signature. she's not complicated, she's just efficient 💅

🫶 ARGUMENTS 🫶

  • fb — the Framebuffer. the vibes we're building a handle for 💖
  • file — the DRM file you wanna register the handle for. yes, that file. 👑
  • handle — pointer where we drop the created handle on the way out. she's an out-param, she's giving ✨ output ✨ 🌈

🦋 DESCRIPTION 🦋

so basically, this function creates a handle for the GEM object that's backing the framebuffer. that's it, that's the whole job, and she ate 💅

drivers can literally just use this as their drm_framebuffer_funcs->create_handle callback — plug and play, no cap 🔥

and who calls in? the GETFB IOCTL calls into this callback. so when userspace comes knocking with GETFB, this is the girl answering the door 🚪✨

⭐ RETURN ⭐

0 on success, or a negative error code on failure 😭 that's it, that's the contract, periodt 💀

🧚 SEE ALSO 🧚

the whole friend group fr fr 🫶✨ go read them, they're all iconic 💜

ngl bestie, this one's short but she's important — if you're writing a driver and you need that create_handle callback, you already know. iykyk 🎀

and that's a wrap! page brought to you by ./drivers/gpu/drm, dated October 2026 — mwah, love u, bye 💖💅🦋🌸

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