DRM_CAP_DUMB_BUFFER(9)

💅 DRM_CAP_DUMB_BUFFER(9) 💅

okay bestie, welcome to the Kernel API Manual — yes it's that one, the capital-K Kernel, we're in the big leagues now 🎀

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✨ NAME ✨

DRM_CAP_DUMB_BUFFER — and that's literally it, that's the whole name section 😭 no little description after the dash, the manpage just said "nvm" and moved on. Iconic honestly. We move.

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🦋 SYNOPSIS 🦋

DRM_CAP_DUMB_BUFFER

yep. that's the whole thing. it's a thing you check, not a thing you call. lowkey the simplest synopsis I've ever seen and I'm obsessed 🫶

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🌸 DESCRIPTION 🌸

so here's the tea, and it's short and sweet:

• if this bad boy is set to 1, the driver supports creating dumb buffers via the DRM_IOCTL_MODE_CREATE_DUMB ioctl.

that's it. that's the whole description. set to 1 → dumb buffers are a go, the ioctl is DRM_IOCTL_MODE_CREATE_DUMB, go off king 👑 ngl this one ate and left absolutely no crumbs, no extra lore, nothing.

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💜 SEE ALSO 💜

okay this is where it gets real, because the cross-reference list here is giving main character energy and it just keeps going 💀 every single one of these, bestie, no skips:

• Kernel file ./tools/perf/trace/beauty/include/uapi/drm/drm.h
• struct drm_gem_close(9)
• struct drm_gem_flink(9)
• struct drm_gem_open(9)
• struct drm_gem_change_handle(9)
• DRM_CAP_VBLANK_HIGH_CRTC(9)
• DRM_CAP_DUMB_PREFERRED_DEPTH(9)
• DRM_CAP_DUMB_PREFER_SHADOW(9)
• DRM_CAP_PRIME(9)
• DRM_PRIME_CAP_IMPORT(9)
• DRM_PRIME_CAP_EXPORT(9)
• DRM_CAP_TIMESTAMP_MONOTONIC(9)
• DRM_CAP_ASYNC_PAGE_FLIP(9)
• DRM_CAP_CURSOR_WIDTH(9)
• DRM_CAP_CURSOR_HEIGHT(9)
• DRM_CAP_ADDFB2_MODIFIERS(9)
• DRM_CAP_PAGE_FLIP_TARGET(9)
• DRM_CAP_CRTC_IN_VBLANK_EVENT(9)
• DRM_CAP_SYNCOBJ(9)
• DRM_CAP_SYNCOBJ_TIMELINE(9)
• DRM_CAP_ATOMIC_ASYNC_PAGE_FLIP(9)
• DRM_CLIENT_CAP_STEREO_3D(9)
• DRM_CLIENT_CAP_UNIVERSAL_PLANES(9)
• DRM_CLIENT_CAP_ATOMIC(9)
• DRM_CLIENT_CAP_ASPECT_RATIO(9)
• DRM_CLIENT_CAP_WRITEBACK_CONNECTORS(9)
• DRM_CLIENT_CAP_CURSOR_PLANE_HOTSPOT(9)
• DRM_CLIENT_CAP_PLANE_COLOR_PIPELINE(9)
• struct drm_syncobj_eventfd(9)
• DRM_IOCTL_GEM_CLOSE(9)
• DRM_IOCTL_PRIME_HANDLE_TO_FD(9)
• DRM_IOCTL_PRIME_FD_TO_HANDLE(9)
• DRM_IOCTL_MODE_RMFB(9)
• DRM_IOCTL_MODE_CREATE_DUMB(9)
• DRM_IOCTL_MODE_GETFB2(9)
• DRM_IOCTL_SYNCOBJ_EVENTFD(9)
• DRM_IOCTL_MODE_CLOSEFB(9)
• DRM_IOCTL_SET_CLIENT_NAME(9)
• DRM_IOCTL_GEM_CHANGE_HANDLE(9)
• struct drm_event(9)
• DRM_EVENT_VBLANK(9)
• DRM_EVENT_FLIP_COMPLETE(9)
• DRM_EVENT_CRTC_SEQUENCE(9)

like I said. no skips. read 'em and weep 🧚✨

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and that's the whole page, bestie!! this one came from the source path ./tools/perf/trace/beauty/incl... (yes it's truncated in the footer, that's just how it is, don't @ me 🙈) and it's dated October 2026, and the footer waves us off with DRM_CAP_DUMB_BUFFER(9) one last time. slay, bye, go make some dumb buffers 💖🔥