This a sample schematics using uPD720114 USB hub controller chip. Can be used this schematics as reference in your Hardware design. Cheers-This is a sample schematics using uPD720114 USB hub controller chip. Can be used this schematics as reference i

介绍linux下的usb架构,包括控制器模块/hub模块/usb core/设备功能部分-Introduced under linux usb architecture, including the controller module/hub module/usb core/equipment functional part