Android USB附件模式不能使用libusb来读写主机PC。

The basic problem we wish to overcome is to transfer data over USB from an external source (PC) acting as a host and power supply to an Android device. As the PC will be able to supply power, and to make it easier for the eventual consumer of the product, we'd like to avoid OTG cables and therefore run the android device in Accessory mode.The basic problem we wish to overcome is to tra