No Protocol NCM in OpenWrt 23.05.5

Installing and Using OpenWrt
1

I have a TPlink Archer C7 v4 with a dongle USB Huawei with protocol NCM.
I updated my old version of OpenWrt 18.06, in 23.05.
Before no problem for running.
After upgrade, no protocol NCM for dongle, in new interface

Software installed in Luci are
luci-ssl
kmod-usb2
kmod-usb3
kmod-usb-net-huawei-cdc-ncm
comgt-ncm
kmod-usb-serial
kmod-usb-serial-option
kmod-usb-serial-wwan
luci-proto-ncm

Do you have a solution ?

If there is no solution for the moment
How do I revert to a previous version of OpenWrt ?

Thanks for answers

2

Show the output of cat /sys/kernel/debug/usb/devices

3

Thanks

T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=480 MxCh= 1
B: Alloc= 0/800 us ( 0%), #Int= 0, #Iso= 0
D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=1d6b ProdID=0002 Rev= 5.15
S: Manufacturer=Linux 5.15.167 ehci_hcd
S: Product=EHCI Host Controller
S: SerialNumber=1b000000.usb
C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
E: Ad=81(I) Atr=03(Int.) MxPS= 4 Ivl=256ms

T: Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=480 MxCh= 1
B: Alloc= 0/800 us ( 0%), #Int= 0, #Iso= 0
D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=1d6b ProdID=0002 Rev= 5.15
S: Manufacturer=Linux 5.15.167 ehci_hcd
S: Product=EHCI Host Controller
S: SerialNumber=1b400000.usb
C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
E: Ad=81(I) Atr=03(Int.) MxPS= 4 Ivl=256ms

T: Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=480 MxCh= 0
D: Ver= 2.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=12d1 ProdID=1506 Rev= 1.02
S: Manufacturer=HUAWEI_MOBILE
S: Product=HUAWEI_MOBILE
S: SerialNumber=0123456789ABCDEF
C:* #Ifs= 3 Cfg#= 1 Atr=c0 MxPwr= 2mA
I:* If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=03 Prot=12 Driver=option
E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I: If#= 1 Alt= 0 #EPs= 1 Cls=ff(vend.) Sub=03 Prot=16 Driver=huawei_cdc_ncm
E: Ad=83(I) Atr=03(Int.) MxPS= 16 Ivl=2ms
I:* If#= 1 Alt= 1 #EPs= 3 Cls=ff(vend.) Sub=03 Prot=16 Driver=huawei_cdc_ncm
E: Ad=83(I) Atr=03(Int.) MxPS= 16 Ivl=2ms
E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 2 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=(none)
E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=125us

4

You need to follow these instructions:
https://openwrt.org/docs/guide-user/network/wan/wwan/ethernetoverusb_ncm
Your serial device is /dev/ttyUSB0

5

The problem is not the modem USB, after command
root@OpenWrt:~# ls -l /dev/cdc-wdm0 /dev/ttyUSB0
crw------- 1 root root 180, 176 Nov 17 10:01 /dev/cdc-wdm0
crw-rw---- 1 root dialout 188, 0 Nov 17 10:01 /dev/ttyUSB0

Do I have to follow the procedure that you have given me ?

6

My problem is not NCM protocol in "add new interface" in Luci 23.05

Add new interface
Add new interface976×904 57.8 KB

7

Reboot?
You can still configure it in the config file.

8

It's ok with command and not with interface Luci

uci set network.wwan=interface
uci set network.wwan.proto='ncm'
uci set network.wwan.device='/dev/ttyUSB0'
uci set network.wwan.ifname='wwan0'
uci set network.wwan.apn='********'
uci set network.wwan.pincode='****'
uci set network.wwan.mode='preferlte'
uci set network.wwan.delay='30'
uci commit

uci add_list firewall.@zone[1].network='wwan'
uci commit
/etc/init.d/firewall reload
/etc/init.d/network restart

And

root@OpenWrt:~# ping forum.openwrt.org -c 4 -I wwan0
PING forum.openwrt.org (139.59.210.197): 56 data bytes
64 bytes from 139.59.210.197: seq=0 ttl=44 time=44.404 ms
64 bytes from 139.59.210.197: seq=1 ttl=44 time=52.069 ms
64 bytes from 139.59.210.197: seq=2 ttl=44 time=55.852 ms
64 bytes from 139.59.210.197: seq=3 ttl=44 time=55.613 ms

--- forum.openwrt.org ping statistics ---
4 packets transmitted, 4 packets received, 0% packet loss
round-trip min/avg/max = 44.404/51.984/55.852 ms

Thanks for your time & informations
Beautiful afternoon

9

Remove this:

I can confirm NCM proto is not visible in Luci after the initial installation but it becomes available after reboot.

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