usbmon is the kernel's built-in USB packet capture and tracing facility, exposing USB bus traffic to userspace tools like Wireshark and tcpdump for debugging USB devices, drivers, and protocol analysis. It is not tied to any specific piece of hardware.
This is not actually a hardware driver; it is the usbmon instrumentation layer that lets developers and support engineers sniff USB traffic for debugging. It is a core diagnostic tool used by Wireshark and similar utilities and has nothing to fall out of relevance for.
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monthly commits · 2021-04-21 → 2026-04-21 · 15 total · active in 12/61 months
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codex reasoning notes (technical)
Not a driver directory: contains the usbmon USB traffic monitoring/sniffing facility, a kernel instrumentation interface rather than hardware-bound device driver code.