usb-3Gmodem 的驱动安装包，可驱动华为的3Gmodem，和高通的3G等。下载后更改环境变量编译即可-this file is about usb-3Gmodem driver,it can drive your 3G modem with card,and connect to the internet

usb模式转换驱动，插上usb上网卡后，自动识别为modem模式，-usb mode switch driver,linux can recognize the usb to moden when usb 3g card insert.