1，将移远EC20官方GOBI驱动源码拷贝到drivers/net/usb下

GobiUSBNet.c

QMI.c

QMI.h

QMIDevice.c

QMIDevice.h

Structs.h

2，修改drivers/net/usb/Makefile

obj-$(CONFIG_USB_GOBI_NET) += GobiNet.o

GobiNet-objs := GobiUSBNet.o QMIDevice.o QMI.o

3，修改drivers/net/usb/Kconfig

config USB_GOBI_NET

tristate "Gobi USB Net driver for Quectel

module"

help

Support Quectelmodule

A modemmanager with support for GobiNet is

recommended.

Tocompile this driver as amudule,choose M

here:the module will be calledGobiNet.

4，配置内核

使能Gobi驱动

-> Device Drivers

-> [*] Network device support

-> -*- USB Network Adapters

-> Gobi USB Net driver for Quectel module

编译内核后启动，可以看到系统输出

GobiNet 1-1.2:1.4 eth1: register 'GobiNet' at

usb-ci_hdrc.1-1.2, GobiNet Ethernet Device, f6:2d:6c:38:f5:11

5，编译quectel-CM

将quectel-CM源码复制到ubuntu交叉编译

make CROSS_COMPILE=arm-linux-gnueabihf-

得到quectel-CM程序，复制到板子/usr/bin目录下

6，上网测试

拨号

quectel-CM -s cenet &

输出以下内容

[1] 511

[06-02_17:11:06:976]

WCDMA&LTE_QConnectManager_Linux&Android_V1.1.34

[06-02_17:11:06:977] quectel-CM profile[1] = cenet///0,

pincode = (null)

[06-02_17:11:06:980] Find /sys/bus/usb/devices/1-1.2

idVendor=2c7c idProduct=0125

[06-02_17:11:06:980] Find

/sys/bus/usb/devices/1-1.2:1.4/net/eth1

[06-02_17:11:06:980] Find usbnet_adapter = eth1

[06-02_17:11:06:980] Find

/sys/bus/usb/devices/1-1.2:1.4/GobiQMI/qcqmi1

[06-02_17:11:06:980] Find qmichannel = /dev/qcqmi1

[06-02_17:11:07:009] Get clientWDS = 7

root@mys6ull14x14:~# [06-02_17:11:07:041] Get clientDMS =

8

[06-02_17:11:07:073] Get clientNAS = 9

[06-02_17:11:07:104] Get clientUIM = 10

[06-02_17:11:07:138] Get clientWDA = 11

[06-02_17:11:07:169] requestBaseBandVersion

EC20CEHCLGR06A02M1G

[06-02_17:11:07:265] requestGetSIMStatus SIMStatus:

SIM_READY

[06-02_17:11:07:265] requestSetProfile[1] cenet///0

[06-02_17:11:07:329] requestGetProfile[1] cenet///0

[06-02_17:11:07:361] requestRegistrationState2 MCC: 460, MNC:

1, PS: Attached, DataCap: LTE

[06-02_17:11:07:393] requestQueryDataCall

IPv4ConnectionStatus: DISCONNECTED

[06-02_17:11:07:457] requestRegistrationState2 MCC: 460, MNC:

1, PS: Attached, DataCap: LTE

[06-02_17:11:07:776] requestSetupDataCall

WdsConnectionIPv4Handle: 0xe17864e0

IPv6: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready

[06-02_17:11:07:872] requestQueryDataCall

IPv4ConnectionStatus: CONNECTED

[06-02_17:11:07:905] ifconfig eth1 up

[06-02_17:11:07:917] busybox udhcpc -f -n -q -t 5 -i

eth1

[06-02_17:11:07:928] udhcpc (v1.24.1) started

GobiNet 1-1.2:1.4 eth1: kevent 12 may have been dropped

[06-02_17:11:08:007] Sending discover...

[06-02_17:11:08:067] Sending select for 10.166.46.124...

[06-02_17:11:08:126] Lease of 10.166.46.124 obtained, lease

time 7200

RTNETLINK answers: File exists

[06-02_17:11:08:183] /etc/udhcpc.d/50default: Adding DNS

120.80.80.80

[06-02_17:11:08:184] /etc/udhcpc.d/50default: Adding DNS

221.5.88.88

ifconfig

可以看到4G网卡已分配IP

route add default gw <4G网卡ip>

ping www.baidu.com -I <4G网卡ip>

成功

killall quectel-CM

关闭连接