嵌入式Linux下USB主设备驱动程序的实现 1.字符设备和块设备 2．Linux中USB设备驱动程序的核心数据结构 嵌入式Linux下USB主机驱动程序的实现-Embedded Linux, USB master to achieve a device driver. Character devices and block devices 2. Linux USB device driver in the core data structure of embedded Linux, USB h