cynthion-capture - Capture USB traffic with Cynthion
Sets up Cynthion and captures USB traffic through Packetry or headless tools, including rolling compressed pcap segments and indexes.
Tags
Updated: 2026-09-29Capabilities
Typical Inputs
Typical Outputs
What this skill does
- Verify Cynthion hardware
- Load analyzer bitstream
- Launch Packetry capture
- Capture headless USB traffic
- Write compressed pcap files
- Rotate capture segments
- Build capture indexes
Inputs
- Cynthion analyzer
- USB target host
- USB target device
- USB cable connections
- Capture output path
- Capture duration
- USB speed filter
- Target host address
Outputs
- Live Packetry capture
- Pcap capture file
- Compressed pcap segments
- Segment JSON indexes
- Capture manifest
- Capture status output
Requirements
- Cynthion r1.4 or later
- CONTROL port connection
- TARGET host connection
- TARGET device connection
- cynthion-setup prerequisites
- Analyzer bitstream
- Rust stable for Rust tool
- pyusb for Python tools
- cynthion-pcap-decode for indexing