Dive deep into the world of USB on embedded Linux systems in this comprehensive conference talk. Explore the USB specification, its implementation in embedded systems, and its various applications from recovery modes to bootloaders. Learn about USB tooling for embedded spaces, role switching techniques, and device/host functionality using different class drivers. Discover debugging methods for USB-related issues, including the powerful in-kernel usbmon facility. Gain practical insights through a live demonstration of real-world USB use cases, covering topics such as USB protocol, signals, firmware upgrades, mass storage, and configuration. Enhance your understanding of USB technology and its integration with embedded Linux systems to improve your development skills and troubleshooting capabilities.