Hi Forum –
I have a 5G Modem (SIM8262) connected to a Rasp Pi 4 via a USB Hat. Unfortunately, I get the following in msg when dmesg:
[ 856.628511] usb 2-1: new SuperSpeed USB device number 6 using xhci_hcd
[ 856.660018] usb 2-1: LPM exit latency is zeroed, disabling LPM.
[ 856.668918] usb 2-1: New USB device found, idVendor=1e0e, idProduct=9011, bcdDevice= 5.04
[ 856.677100] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 856.684251] usb 2-1: Product: SDXLEMUR-LITE-MTP _SN:C08A4366
[ 856.689917] usb 2-1: Manufacturer: SIMCOM
[ 856.693923] usb 2-1: SerialNumber: 0123456789ABCDEF
[ 856.721964] option 2-1:1.2: GSM modem (1-port) converter detected
[ 856.728279] usb 2-1: GSM modem (1-port) converter now attached to ttyUSB0
[ 856.735383] option 2-1:1.3: GSM modem (1-port) converter detected
[ 856.741695] usb 2-1: GSM modem (1-port) converter now attached to ttyUSB1
[ 856.748822] option 2-1:1.4: GSM modem (1-port) converter detected
[ 856.755063] usb 2-1: GSM modem (1-port) converter now attached to ttyUSB2
[ 856.762158] option 2-1:1.5: GSM modem (1-port) converter detected
[ 856.768425] usb 2-1: GSM modem (1-port) converter now attached to ttyUSB3
[ 856.775464] option 2-1:1.6: GSM modem (1-port) converter detected
[ 856.781724] usb 2-1: GSM modem (1-port) converter now attached to ttyUSB4
[ 1403.656351] usb 2-1: USB disconnect, device number 6
[ 1403.662086] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
[ 1403.670270] option 2-1:1.2: device disconnected
[ 1403.675350] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
[ 1403.683483] option 2-1:1.3: device disconnected
[ 1403.688971] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2
[ 1403.697196] option 2-1:1.4: device disconnected
[ 1403.701971] option1 ttyUSB3: GSM modem (1-port) converter now disconnected from ttyUSB3
[ 1403.710080] option 2-1:1.5: device disconnected
[ 1403.714849] option1 ttyUSB4: GSM modem (1-port) converter now disconnected from ttyUSB4
[ 1403.722967] option 2-1:1.6: device disconnected
The hat and rasp pi have separate 5V power resources, as I wanted to eliminate the possibility that the hat is underpowered.
Also, I don't see the usb0 as an interface in the Pi.
Any thoughts on how to approach this?
Find a better power supply for your modem, use a good short and thick power cable.
Once disconnection issue is solved show the output of cat /sys/kernel/debug/usb/devices
Thanks! Here's the output:
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 5.15.137 xhci-hcd
S: Product=xHCI Host Controller
S: SerialNumber=0000:01:00.0
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=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=480 MxCh= 4
D: Ver= 2.10 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=2109 ProdID=3431 Rev= 4.21
S: Product=USB2.0 Hub
C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=100mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
E: Ad=81(I) Atr=03(Int.) MxPS= 1 Ivl=256ms
T: Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=5000 MxCh= 4
B: Alloc= 0/800 us ( 0%), #Int= 0, #Iso= 0
D: Ver= 3.00 Cls=09(hub ) Sub=00 Prot=03 MxPS= 9 #Cfgs= 1
P: Vendor=1d6b ProdID=0003 Rev= 5.15
S: Manufacturer=Linux 5.15.137 xhci-hcd
S: Product=xHCI Host Controller
S: SerialNumber=0000:01:00.0
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=5000 MxCh= 0
D: Ver= 3.20 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 9 #Cfgs= 1
P: Vendor=1e0e ProdID=9011 Rev= 5.04
S: Manufacturer=SIMCOM
S: Product=SDXLEMUR-LITE-MTP _SN:C08A4366
S: SerialNumber=0123456789ABCDEF
C:* #Ifs= 7 Cfg#= 1 Atr=a0 MxPwr=896mA
A: FirstIf#= 0 IfCount= 2 Cls=ef(misc ) Sub=04 Prot=01
I:* If#= 0 Alt= 0 #EPs= 1 Cls=ef(misc ) Sub=04 Prot=01 Driver=(none)
E: Ad=81(I) Atr=03(Int.) MxPS= 8 Ivl=32ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=(none)
E: Ad=8e(I) Atr=02(Bulk) MxPS=1024 Ivl=0ms
E: Ad=0f(O) Atr=02(Bulk) MxPS=1024 Ivl=0ms
I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=30 Driver=option
E: Ad=01(O) Atr=02(Bulk) MxPS=1024 Ivl=0ms
E: Ad=82(I) Atr=02(Bulk) MxPS=1024 Ivl=0ms
I:* If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=60 Driver=option
E: Ad=84(I) Atr=03(Int.) MxPS= 10 Ivl=32ms
E: Ad=83(I) Atr=02(Bulk) MxPS=1024 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS=1024 Ivl=0ms
I:* If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=40 Driver=option
E: Ad=86(I) Atr=03(Int.) MxPS= 10 Ivl=32ms
E: Ad=85(I) Atr=02(Bulk) MxPS=1024 Ivl=0ms
E: Ad=03(O) Atr=02(Bulk) MxPS=1024 Ivl=0ms
I:* If#= 5 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=40 Driver=option
E: Ad=88(I) Atr=03(Int.) MxPS= 10 Ivl=32ms
E: Ad=87(I) Atr=02(Bulk) MxPS=1024 Ivl=0ms
E: Ad=04(O) Atr=02(Bulk) MxPS=1024 Ivl=0ms
I:* If#= 6 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=40 Driver=option
E: Ad=8a(I) Atr=03(Int.) MxPS= 10 Ivl=32ms
E: Ad=89(I) Atr=02(Bulk) MxPS=1024 Ivl=0ms
E: Ad=05(O) Atr=02(Bulk) MxPS=1024 Ivl=0ms
/dev/ttyUSB2 is typically the AT command port, if there is no offset caused by other devices.
Connect using a terminal like picocom and send AT+CUSBCFG=USBID,1E0E,9003
Reset or re-connect the modem then check with cat /sys/kernel/debug/usb/devices again.
Assuming the modem will appear in MBIM mode you will need to follow this: https://openwrt.org/docs/guide-user/network/wan/wwan/ltedongle
picocom gives me this:
picocom v3.1
port is : /dev/ttyUSB2
flowcontrol : none
baudrate is : 115200
parity is : none
databits are : 8
stopbits are : 1
escape is : C-a
local echo is : no
noinit is : no
noreset is : no
hangup is : no
nolock is : no
send_cmd is : sz -vv
receive_cmd is : rz -vv -E
imap is :
omap is :
emap is : crcrlf,delbs,
logfile is : none
initstring : none
exit_after is : not set
exit is : no
!! Settings mismatch !! Type [C-a] [C-v] to see actual port settings
Type [C-a] [C-h] to see available commands
Terminal ready
+CPIN: READY
SMS DONE
PB DONE
and cat /sys/kernel/debug/usb/devices outputs this:
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 5.15.137 xhci-hcd
S: Product=xHCI Host Controller
S: SerialNumber=0000:01:00.0
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=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=480 MxCh= 4
D: Ver= 2.10 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=2109 ProdID=3431 Rev= 4.21
S: Product=USB2.0 Hub
C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=100mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
E: Ad=81(I) Atr=03(Int.) MxPS= 1 Ivl=256ms
T: Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=5000 MxCh= 4
B: Alloc= 0/800 us ( 0%), #Int= 0, #Iso= 0
D: Ver= 3.00 Cls=09(hub ) Sub=00 Prot=03 MxPS= 9 #Cfgs= 1
P: Vendor=1d6b ProdID=0003 Rev= 5.15
S: Manufacturer=Linux 5.15.137 xhci-hcd
S: Product=xHCI Host Controller
S: SerialNumber=0000:01:00.0
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#= 4 Spd=5000 MxCh= 0
D: Ver= 3.20 Cls=ef(misc ) Sub=02 Prot=01 MxPS= 9 #Cfgs= 1
P: Vendor=1e0e ProdID=9003 Rev= 5.04
S: Manufacturer=SIMCOM
S: Product=SDXLEMUR-LITE-MTP _SN:C08A4366
S: SerialNumber=0123456789ABCDEF
C:* #Ifs= 7 Cfg#= 1 Atr=a0 MxPwr=896mA
A: FirstIf#= 5 IfCount= 2 Cls=02(comm.) Sub=0e Prot=00
I:* If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=30 Driver=option
E: Ad=01(O) Atr=02(Bulk) MxPS=1024 Ivl=0ms
E: Ad=81(I) Atr=02(Bulk) MxPS=1024 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=60 Driver=option
E: Ad=83(I) Atr=03(Int.) MxPS= 10 Ivl=32ms
E: Ad=82(I) Atr=02(Bulk) MxPS=1024 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS=1024 Ivl=0ms
I:* If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=40 Driver=option
E: Ad=85(I) Atr=03(Int.) MxPS= 10 Ivl=32ms
E: Ad=84(I) Atr=02(Bulk) MxPS=1024 Ivl=0ms
E: Ad=03(O) Atr=02(Bulk) MxPS=1024 Ivl=0ms
I:* If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=40 Driver=option
E: Ad=87(I) Atr=03(Int.) MxPS= 10 Ivl=32ms
E: Ad=86(I) Atr=02(Bulk) MxPS=1024 Ivl=0ms
E: Ad=04(O) Atr=02(Bulk) MxPS=1024 Ivl=0ms
I:* If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=40 Driver=option
E: Ad=89(I) Atr=03(Int.) MxPS= 10 Ivl=32ms
E: Ad=88(I) Atr=02(Bulk) MxPS=1024 Ivl=0ms
E: Ad=05(O) Atr=02(Bulk) MxPS=1024 Ivl=0ms
I:* If#= 5 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=0e Prot=00 Driver=(none)
E: Ad=8a(I) Atr=03(Int.) MxPS= 64 Ivl=32ms
I:* If#= 6 Alt= 0 #EPs= 0 Cls=0a(data ) Sub=00 Prot=02 Driver=(none)
I: If#= 6 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=02 Driver=(none)
E: Ad=8e(I) Atr=02(Bulk) MxPS=1024 Ivl=0ms
E: Ad=0f(O) Atr=02(Bulk) MxPS=1024 Ivl=0ms
Your modem is in MBIM mode now and you need to follow the instructions from the wiki.
Thanks. It seems I don't have /dev/cdc-wdm0 but I do have /dev/ttyUSB2.
Could I create a wwan interface based on /dev/ttyUSB2 as I follow the instructions on the Wifi?
You need to do whatever is written in the wiki.
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Well, personally, for using usb modem as main source of internet I would go with a good fork of openwrt that is called Rooter. It is a specialized version of openwrt that is made for usb modems.
It is a plug and play firmware where you don't need to mess around with packages or modem configurations.
Do check it out. https://www.ofmodemsandmen.com, they also have continuous support forum https://forums.whirlpool.net.au/thread/2689577?p=-1&#bottom for any query about the same.