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HID++ ReferenceFeatures0x2121 · hiResWheel

0x2121 hiResWheel

High-resolution scrolling. The wheel can report fine-grained motion, switch between ratchet and free-spin, and route its events either as standard HID or as HID++ notifications. Functions cover reading the wheel capability, getting/setting the current mode, and inverting direction.

Spec: Logitech HID++ 2.0 — x2121 hiResWheel (v1).

Full function and event reference coming soon.

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