SEGGER emUSB-Device for ModusToolbox

August 10, 2026 · View on GitHub

Overview

emUSB-Device enables easy integration of USB functionality into an embedded system. Multiple standard classes are provided that allow embedded systems to behave as standard USB devices and communicate with any host like Windows, Linux and Mac systems. Infineon has licensed emUSB-Device from SEGGER and offers it for free to its customers. This middleware library provides emUSB-Device in the form of pre-build libraries.

Features:

High performance
Can be used with or without an RTOS
Easy to use
Easy to port
No custom USB host driver necessary

Supported USB Device Classes:

Audio
Legacy Audio V1 device class
Bulk communication
Smart Card Device Class (CCID)
Communication Device Class (CDC)
Human Interface Device Class (HID)
Mass Storage Device Class (MSD)
Media Transfer Protocol Class (MTP)
Printer Class
Virtual Mass Storage Component (VirtualMSD)
Vendor Specific Class (VSC)

Quick Start

Refer to emUSB-Device API Reference for a Quick Start Guide

Supported Toolchains

Refer to Release Notes for a list of supported toolchains.

Supported Devices

Device families supported by the Middleware:

PSE84
PSOC™ Control C3 P6/M6

More information

For more information, refer to the following documents: