BHduke的专栏

/** * container_of - cast a member of a structure out to the containing structure * @ptr:     the pointer to the member. * @type:     the type of the container struct this is embedded in. * @membe

interface_to_usbdev() -- 根据usb_interface指针intf获取usb_device的地址。 interface_to_usbdev() -- 获取usb接口对应的usb设备，usb接口对应的usb设备是该接口的父亲。 #define interface_to_usbdev(intf) \     container_of(intf->dev.pare