unregister_framebuffer(9)

🎀 unregister_framebuffer 💅

okay so bestie, this one's a Kernel API Manual page, and it's literally the breakup arc for a frame buffer device. no cap, it's giving "it's not you, it's the module_exit". let's get into it 🦋

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✨ NAME ✨

unregister_framebuffer — the function that releases a frame buffer device 🫶

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🌸 SYNOPSIS 🌸

void unregister_framebuffer (struct fb_info *fb_info );

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💖 ARGUMENTS 💖

• fb_info — the frame buffer info structure. that's the one, that's our main character 👑 (it's a struct fb_info and it's the whole vibe)

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⭐ DESCRIPTION ⭐

so like, unregister_framebuffer unregisters a frame buffer device fb_info. that's the whole mission. bye bitch 👋✨

it returns negative errno on error, or zero for success — yes, even though the synopsis says void, that's what the page says, and we don't argue with the docs, we just vibe with them 😭

this function will also notify the framebuffer console to release the driver — like it sends the group chat a "we're done here" text so the console doesn't keep holding on 🔥

and here's the important part, bestie, listen up 👂 — this is meant to be called within a driver's module_exit function. that's its home. that's where it slays.

⚠️ but if this is called outside module_exit, you gotta ensure that the driver implements fb_open and fb_release to check that no processes are using the device. we are NOT pulling the rug out from under an in-use device, that's giving main character energy of the worst kind 💀🙈

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💜 SEE ALSO 💜

okay the girlies it shares a group chat with 🧚:

• Kernel file ./drivers/video/fbdev/core/fbmem.c
• register_framebuffer(9)
• devm_register_framebuffer(9)
• fb_set_suspend(9)
• fb_switch_outputs(9)

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and that's the page, periodt 💅 the whole thing lives over in ./drivers/video/fbdev/core, it's dated October 2026, and yep — it's filed under unregister_framebuffer(9) in case you need to find her again. mwah 🎀💖