AM335x 添加 HUAWEI MU609 Mini PCIe Module，并用pppd 启动相关设备

kernel 的配置

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

kernel 3.2.0
make menuconfig
Device 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 3.2.0
vim 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 menuconfig
Target 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-password
usepeerdns
noipdefault
defaultroute
user "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=0
OK              ATE0V1
OK      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