The Host Controller (HC) contains a set of on-chip operational registers which are mapped into a noncacheable portion of the system addressable space . These registers are used...
All items contain a 1-byte prefix which denotes the basic type of the item. The HID class defines two basic formats for items: 所有项都包含一个1字节的前缀 ,用于标识该项的基本类型。HID 类为项定义两种基本格式: S...