esp-idf/tools/test_apps/peripherals/usb/README.md

Supported Targets	ESP32-S2	ESP32-S3

USB Host Class driver test project

Main purpose of this application is to test the USB Host Class drivers.

CDC-ACM driver

It tests basic functionality of the driver like open/close/read/write operations, advanced features like CDC control request, multi-threaded or multi-device access, as well as reaction to sudden disconnection and other error states.

Hardware Required

This test expects that TinyUSB dual CDC device with VID = 0x303A and PID = 0x4002 is connected to the USB host.

MSC driver

Basic functionality such as MSC device install/uninstall, file operatons, raw access to MSC device and sudden disconnect is tested.

Hardware Required

This test requires two ESP32-S2/S3 boards with a interconnected USB perpherals, one acting as host running MSC host driver and another MSC device driver (tinyusb).