Internal support code for the hubbub (memory request arbiter) sub-block of AMD's Display Core Next 3.01 hardware, the display engine found in AMD APUs like Van Gogh, which powers devices such as the Steam Deck. It is one piece of the much larger amdgpu display pipeline, not a hardware driver in its own right.
This is not actually a driver directory; it is a small piece of helper code inside AMD's amdgpu display stack that handles the "hubbub" memory-interface block of the DCN 3.01 display hardware (used in APUs such as Van Gogh / Steam Deck). It is built as part of the larger amdgpu driver rather than loaded on its own, so it cannot meaningfully be evaluated as a standalone driver.
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monthly commits · 2021-04-21 → 2026-04-21 · 1 total · active in 1/61 months
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codex reasoning notes (technical)
Not a driver directory: contains AMD DCN3.01 display-core hubbub IP-block helper code within the amdgpu display stack, not a standalone kernel-bound hardware driver.