The STM32CubeIDE tool supports code auto-generation for USB devices for individual Classes, but not for composite devices. To prepare a composite device, the existing USB device driver Library provided by ST electronics can be used with a basic understanding of USB device, Composite Device and STM32 USB Library Code architecture. This document is for those interested in USB composite device drivers for the STM32 platform, covering all necessary components with bare minimum details.

The document is divided into three parts:

• Basic Details related to the components of the USB Composite Device Driver Development
• Implementation of the USB Composite Device Driver for the STM32 platform
• Debugging and integrating the USB Composite Device Driver with the Application Layer