OpenWRT移植FCS950R和EC200A，并实现手机连接WiFi上网

一、EC200A配置

1.1、kernel配置

1.1.1、USB转串口 

CONFIG_USB_SERIAL=y

CONFIG_USB_SERIAL_WWAN=y

CONFIG_USB_SERIAL_OPTION=y

 Symbol: USB_SERIAL_WWAN [=y]                                                                                                              │  
  │ Type  : tristate                                                                                                                          │  
  │   Defined at drivers/usb/serial/Kconfig:555                                                                                               │  
  │   Depends on: USB_SUPPORT [=y] && USB [=y] && USB_SERIAL [=y]                                                                             │  
  │   Selected by [y]:                                                                                                                        │  
  │   - USB_SERIAL_OPTION [=y] && USB_SUPPORT [=y] && USB [=y] && USB_SERIAL [=y]                                                             │  
  │   Selected by [n]:                                                                                                                        │  
  │   - USB_SERIAL_IPW [=n] && USB_SUPPORT [=y] && USB [=y] && USB_SERIAL [=y]                                                                │  
  │   - USB_SERIAL_QUALCOMM [=n] && USB_SUPPORT [=y] && USB [=y] && USB_SERIAL [=y] 

 Symbol: USB_SERIAL_OPTION [=y]                                                                                                            │  
  │ Type  : tristate                                                                                                                          │  
  │ Prompt: USB driver for GSM and CDMA modems                                                                                                │  
  │   Location:                                                                                                                               │  
  │     -> Device Drivers                                                                                                                     │  
  │       -> USB support (USB_SUPPORT [=y])                                                                                                   │  
  │ (1)     -> USB Serial Converter support (USB_SERIAL [=y])                                                                                 │  
  │   Defined at drivers/usb/serial/Kconfig:558                                                                                               │  
  │   Depends on: USB_SUPPORT [=y] && USB [=y] && USB_SERIAL [=y]                                                                             │  
  │   Selects: USB_SERIAL_WWAN [=y]  

 1.1.2、USB网卡驱动

USB_USBNET=y

USB_NET_CDCETHER=y

USB_NET_RNDIS_HOST=y

 Symbol: USB_NET_CDCETHER [=y]                                                                                                             │  
  │ Type  : tristate                                                                                                                          │  
  │ Prompt: CDC Ethernet support (smart devices such as cable modems)                                                                         │  
  │   Location:                                                                                                                               │  
  │     -> Device Drivers                                                                                                                     │  
  │       -> Network device support (NETDEVICES [=y])                                                                                         │  
  │         -> USB Network Adapters (USB_NET_DRIVERS [=y])                                                                                    │  
  │ (1)       -> Multi-purpose USB Networking Framework (USB_USBNET [=y])                                                                     │  
  │   Defined at drivers/net/usb/Kconfig:210                                                                                                  │  
  │   Depends on: NETDEVICES [=y] && USB_NET_DRIVERS [=y] && USB_USBNET [=y]                                                                  │  
  │   Selected by [y]:                                                                                                                        │  
  │   - USB_NET_RNDIS_HOST [=y] && NETDEVICES [=y] && USB_NET_DRIVERS [=y] && USB_USBNET [=y]                                                 │  
  │   - USB_NET_ZAURUS [=y] && NETDEVICES [=y] && USB_NET_DRIVERS [=y] && USB_USBNET [=y]                                                     │  
  │   Selected by [n]:                                                                                                                        │  
  │   - USB_NET_RNDIS_WLAN [=n] &&