请问下EC20模块支持ECM模式拨号上网吗?要如何拨号上网?
EC20版本:
EC20CEHDLG-128-SNNS
固件版本:
EC20CEHDLGR08A02M1G
linux能识别到EC20模块的usb0端口,但是使用quectel-CM拨号报错,这个可能是什么问题?
microcom -s 9600 /dev/ttyUSB2
ati
Quectel
EC20F
Revision: EC20CEHDLGR08A02M1G
OK
AT+QCFG=“usbnet”,1
OK
ifconfig -a
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope: Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 TX bytes:0
usb0 Link encap:Ethernet HWaddr 52:9315:ac:7d Driver cdc_ether
inet addr:192.168.225.27 Bcast:192.168.225.255 Mask:255.255.255.0
inet6 addr: fe80::5093:cdff:fe15:ac7d/64 Scope: Link
inet6 addr: 2409:8934:18:e7db:5093:cdff:fe15:ac7d/64 Scope: Global
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:22 errors:0 dropped:0 overruns:0 frame:0
TX packets:15 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2266 TX bytes:1742
quectel-CM
[ 08-05_17:42:25:586] QConnectManager_Linux_V1.6.5.1
[ 08-05_17:42:25:589] Find /sys/bus/usb/devices/5-1.7 idVendor=0x2c7c idProduct=0x125, bus=0x005, dev=0x005
[ 08-05_17:42:25:591] unknow at interface for USB idProduct:0125
[ 08-05_17:42:25:595] network interface ‘’ or qmidev ‘’ is not exist
[ 08-05_17:42:25:595] atdevice_detect failed
[ 08-05_17:42:25:595] qmidevice_detect failed