drm_gem_fb_get_obj(9)

💖 drm_gem_fb_get_obj(9) — get the GEM object that's backing your framebuffer 💖

okay so bestie, this is a page from the Kernel API Manual, and it's about one tiny little helper that's lowkey doing main character work behind the scenes. 🎀

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✨ NAME ✨

drm_gem_fb_get_obj — get the GEM object backing the framebuffer 🦋

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🌸 SYNOPSIS 🌸

struct drm_gem_object * drm_gem_fb_get_obj (struct drm_framebuffer *fb ,
       unsigned int plane );

like, you hand it a framebuffer and a plane index, and it hands you back the pointer. simple as that, no cap. ✨

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💅 ARGUMENTS 💅

• fb — the framebuffer. yeah. that one. 🖼️
• plane — the plane index. which plane are we talking about, bestie? 🌈

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🫶 DESCRIPTION 🫶

okay so here's the thing that actually matters: this function does not take any additional reference beyond the one that the drm_frambuffer already holds. 💀 like, it does not bump the refcount for you. the framebuffer's already holding that reference, so you're just borrowing the pointer. no extra credit, no extra ref, periodt.

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⭐ RETURN ⭐

it gives you back a pointer to drm_gem_object for the given framebuffer and plane index — or NULL if it does not exist. 🙈 so yeah, check for the NULL, bestie, it's giving "might not be there" energy.

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🧚 SEE ALSO 🧚

the whole friend group, honestly 👑:

• Kernel file ./drivers/gpu/drm/drm_gem_framebuffer_helper.c overview(9)
• drm_gem_fb_destroy(9)
• drm_gem_fb_create_handle(9)
• drm_gem_fb_init_with_funcs(9)
• drm_gem_fb_create_with_funcs(9)
• drm_gem_fb_create(9)
• drm_gem_fb_create_with_dirty(9)
• drm_gem_fb_vmap(9)
• drm_gem_fb_vunmap(9)
• drm_gem_fb_begin_cpu_access(9)
• drm_gem_fb_end_cpu_access(9)
• drm_gem_fb_afbc_init(9)

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ngl this one's short but it ate. know your refcounts, know your planes, and always check for NULL. 💖

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🌸 that's the whole vibe, bestie — brought to you by ./drivers/gpu/drm, October 2026, and this lil' drm_gem_fb_get_obj(9) moment. slay, bye! 💅✨