将3G上网卡移植到arm板linux时，usb默认的是存储器模式，需要将其转换成上网卡模式才能拨号，usb-modeswitch提供该功能-Will migrate to 3G on the card when the arm board linux, usb memory mode is the default, you need to convert it into a card mode to dial-up, usb-modeswitch provide this functionali

这个软件是用于linux下usb设备切换模式的软件，如果你的usb modem没有linux下的驱动的话，不妨试试这个，已经支持很多3G usb modem了。-USB_ModeSwitch is (surprise!) a mode switching tool for controlling "flip flop" (multiple device) USB gear

Handling Mode-Switching USB Devices on Linux

USB_ModeSwitch is (surprise!) a mode switching tool for controlling "flip flop" (multiple device) USB gear. Several new USB devices (especially high-speed wireless WAN stuff, there seems to be a chipset from Qualcomm offering that feature) have