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...
笔记 An item is piece of information about the device. All items have a one-byte prefix that contains the item tag , item type , and item size . 一个“项”是描述设备的一段信息。所有项都有一个字节的前缀,其中包...
Figure 3-1 shows four main focus areas of a Universal Serial Bus (USB) system. These areas are the Client Software/USB Driver, Host Controller Driver (HCD), Host Controller (HC), ...