- Streamlined code with small memory usage which also can be further trimmed
- Comprehensive class drivers and all master and slave class drivers are templated,making it easy for users to add new class drivers and find patterns when learning
- The APIs available to the users are very few and clearly categorised. Device: initialisation + registration apis, command callback apis, data sending and receiving apis; Host: initialisation + lookup apis, data sending and receiving apis
- Tree-based programming with a hierarchy of code that makes it easy for the user to sort out function call relationships, enumerations and class-driven loading processes
- Standardised porting interface, no need to rewrite the driver for the same ip, and porting drivers are templated to make it easier for users to add new ports
- The use of the device or host transceiver apis are equivalent to the use of the uart tx/rx dma, and there is no limit to the length
- Capable of achieving theoretical USB hardware bandwidth
CherryUSB Device Stack provides a unified framework of functions for standard device requests, CLASS requests, VENDOR requests and custom special requests. The object-oriented and chained approach allows the user to quickly get started with composite devices without having to worry about the underlying logic. At the same time, a standard dcd porting interface has been standardised for adapting different USB IPs to achieve ip-oriented programming.
The CherryUSB Host Stack has a standard enumeration implementation for devices mounted on roothubs and external hubs, and a standard interface for different Classes to indicate what the Class driver needs to do after enumeration and after disconnection. A standard hcd porting interface has also been standardised for adapting different USB IPs for IP-oriented programming. Finally, the host stack is managed using os, and provides osal to make a adaptation for different os.
The CherryUSB Host stack also provides the lsusb function, which allows you to view information about all mounted devices, including those on external hubs, with the help of a shell plugin.
Quickly start, USB basic concepts, API manual, Class basic concepts and examples, see [CherryUSB Documentation Tutorial](https://cherryusb.readthedocs.io/)
USB basic concepts and how the CherryUSB Device stack is implemented, see [CherryUSB Device Stack Tutorial](https://www.bilibili.com/video/BV1Ef4y1t73d).
[chryusb_configurator](https://github.com/Egahp/chryusb_configurator) is written in **electron + vite2 + ts** framework，currently used to automate the generation of descriptor arrays, with additional functionality to be added later.
