• kernel 的配置

    kernel 3.2.0make menuconfigDevice Drivers  --->[*] USB support  ---><*>   USB Serial Converter support  ---><*>   USB driver for GSM and CDMA modems

    kernel 3.2.0make menuconfigDevice Drivers  --->[*] Network device support  --->// 将这里面所有的ppp 的支持多选上USB Network Adapters  --->< >   CDC Ethernet support (smart devices such as cable modems)< >   CDC EEM support< >   CDC NCM support

    kernel 3.2.0vim drivers/usb/serial/option.c#define HUAWEI_PRODUCT_E353         0x1573// 这个宏改为 0x1573// 重新编译// 将模块插好

• buildroot 的配置

    make menuconfigTarget packages  --->Networking applications  --->[*] pppd [ ]   filtering[*]   radius 

• pppd 启动脚本的配置

    // 在文件系统的 /etc 目录下，创建 ppp 目录// 在 /etc/ppp 目录下创建 peers 目录

    #     vim  /etc/ppp/peers/gprs#/etc/ppp/peers/gprs# This is pppd script for China Mobile, used GPRS Module# Usage:   root>pppd call gprs/dev/ttyUSB0    115200          nocrtscts      modem#noauth        debug#nodetach#hide-passwordusepeerdnsnoipdefaultdefaultrouteuser "cmnet"   0.0.0.0:0.0.0.0 ipcp-accept-local#ipcp-accept-remote#lcp-echo-failure  12#lcp-echo-interval 3#noccp#novj#novjccomp#persist#connect '/usr/sbin/chat -s -v -f /etc/ppp/gprs-connect-chat'connect '/usr/sbin/chat -v -s -f /etc/ppp/gprs-connect-chat'#disconnect '/bin/chat -v -f /etc/ppp/gprs-disconnect-chat'

    # vim  etc/ppp/chap-secrets# Secrets for authentication using CHAP# client    server  secret          IP addresses"cmnet"    *     "cmnet"    *   

    # vim etc/ppp/gprs-connect-chat#/etc/ppp/gprs-connect-chat#    chat script for China Mobile, used GPRS module.TIMEOUT         15  ABORT           "DELAYED"ABORT           "BUSY"ABORT           "ERROR"ABORT           "NO DIALTONE"ABORT           "NO CARRIER"TIMEOUT         40  ''              AT  OK              ATS0=0OK              ATE0V1OK      AT+CGDCONT=1,"IP","CMNET"OK              ATDT*99***1#CONNECT         ''  

• 启动pppd 服务器

    pppd call gprs &

• 查看启动后的网络文件节点