> I don't see any such port exposed in your
> logs.
Some more ports seem to exist:
root@9d52738:/sys/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.4# ls -l
/dev/ttyUSB*
crw-rw---- 1 root dialout 188, 0 Dec 20 16:13 /dev/ttyUSB0
crw-rw---- 1 root dialout 188, 1 Dec 20 16:13 /dev/ttyUSB1
crw-rw---- 1 root dialout 188, 2 Dec 20 16:13 /dev/ttyUSB2
crw-rw---- 1 root dialout 188, 3 Dec 20 16:13 /dev/ttyUSB3
crw-rw---- 1 root dialout 188, 4 Dec 20 16:13 /dev/ttyUSB4
crw-rw---- 1 root dialout 188, 5 Dec 20 16:13 /dev/ttyUSB5
root@9d52738:/sys/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.4# find .
-name interface|sort
./1-1.4:2.0/interface
./1-1.4:2.1/interface
./1-1.4:2.2/interface
./1-1.4:2.3/interface
./1-1.4:2.4/interface
./1-1.4:2.5/interface
./1-1.4:2.6/interface
root@9d52738:/sys/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.4# find .
-name interface|sort|xargs cat
CDC Ethernet Control Model (ECM)
CDC Ethernet Data
Huawei Mobile Connect - Modem
Huawei Mobile Connect - Application
Huawei Mobile Connect - Pcui
Huawei Mobile Connect - Ctrl
Huawei Mobile Connect - Serial B
> Does your
> system have the huawei_cdc_nmc and cdc-wdm drivers installed?
root@9d52738:/lib/modules/4.19.71/kernel/drivers# find .|grep wdm
./usb/class/cdc-wdm.ko
root@9d52738:/lib/modules/4.19.71/kernel/drivers# find .|grep huawei
./net/usb/huawei_cdc_ncm.ko
> Do you have the cdc_mbim driver
> installed in your system?
root@9d52738:/lib/modules/4.19.71/kernel/drivers# find .|grep mbim
./net/usb/cdc_mbim.ko
> Do you have the "usb modeswitch" program
> installed?
Yes, I have. But so far, I had only used this for LTE sticks that present
themselves as a mass storage initially. My impression was that for the Huawei
909 (mpcie) modeswitch was not necessary - but I have no proof for that.
> Does the Huawei command reference
> specify which port is which?
No. I think you cannot rely on a fixed mapping between ttyUSBx and a specific
modem port. On a different software stack (not balenaOS) we had followed a
suggestion to create symlinks via udev. Something similar to this:
KERNELS=="1-1.3*", SUBSYSTEMS=="usb", DRIVERS=="option",
ATTRS{bInterfaceNumber}=="02", SYMLINK+="modemPPP"
KERNELS=="1-1.3*", SUBSYSTEMS=="usb", DRIVERS=="option",
ATTRS{bInterfaceNumber}=="04", SYMLINK+="modemAT"
...
We had used a similar procedure for a Simcom 7100 modem:
KERNELS=="1-1.4*",SUBSYSTEMS=="usb", DRIVERS=="option",
ATTRS{bInterfaceNumber}=="00",SYMLINK+="modemS0"
KERNELS=="1-1.4*",SUBSYSTEMS=="usb", DRIVERS=="option",
ATTRS{bInterfaceNumber}=="01",SYMLINK+="modemS1"
KERNELS=="1-1.4*",SUBSYSTEMS=="usb", DRIVERS=="option",
ATTRS{bInterfaceNumber}=="02",SYMLINK+="modemS2"
KERNELS=="1-1.4*",SUBSYSTEMS=="usb", DRIVERS=="option",
ATTRS{bInterfaceNumber}=="03",SYMLINK+="modemS3"KERNELS=="1-1.4*",SUBSYSTEMS=="usb",
DRIVERS=="option", ATTRS{bInterfaceNumber}=="01",SYMLINK+="modemGPS"
KERNELS=="1-1.4*",SUBSYSTEMS=="usb", DRIVERS=="option",
ATTRS{bInterfaceNumber}=="02",SYMLINK+="modemAT"
KERNELS=="1-1.4*",SUBSYSTEMS=="usb", DRIVERS=="option",
ATTRS{bInterfaceNumber}=="03",SYMLINK+="modemPPP"
Or under Buildroot without udev, I used sth. like this:
#!/bin/sh
case "$1" in
start)
echo "Setting up modem..."
mknod /dev/ppp c 108 0
n=0
until [ $n -ge 12 ]
do
[ -c /dev/ttyUSB5 ] && break
n=$(( $n+1 ))
sleep 5
done
TTYUSB=$(find /sys/devices -maxdepth 8 -name 'ttyUSB?'|xargs -i sh -c
'echo $(basename {}) $(cat {}/../interface)')
set -- $(echo "$TTYUSB"|grep Modem)
if [ -n "$1" ]
then
echo "Discovered modem port @$1 -> /dev/modemPPP"
ln -s $1 /dev/modemPPP
else
echo "Could not find modem port"
exit 1
fi
set -- $(echo "$TTYUSB"|grep Pcui)
if [ -n "$1" ]
then
echo "Discovered pcui port @$1 -> /dev/modemAT"
ln -s $1 /dev/modemAT
else
echo "Could not find pcui port"
exit 1
fi
;;
stop)
;;
restart|reload)
;;
*)
echo "Usage: $0 {start|stop|restart}"
exit 1
esac
exit $?
> Also, could you get the output of "lsusb -v -d 12d1:15c1" and
> "usb-devices" and attach it here?
Sure, it's attached.
Bruno
root@9d52738:/tmp# lsusb -v -d 12d1:15c1
Bus 001 Device 008: ID 12d1:15c1
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0
bDeviceSubClass 0
bDeviceProtocol 255
bMaxPacketSize0 64
idVendor 0x12d1
idProduct 0x15c1
bcdDevice 1.02
iManufacturer 1 Huawei Technologies Co., Ltd.
iProduct 2 HUAWEI Mobile V7R11
iSerial 3 0123456789ABCDEF
bNumConfigurations 3
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 0x012d
bNumInterfaces 6
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xa0
(Bus Powered)
Remote Wakeup
MaxPower 2mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 3
bInterfaceClass 255
bInterfaceSubClass 6
bInterfaceProtocol 16
iInterface 7 Huawei Mobile Connect - Modem
** UNRECOGNIZED: 05 24 00 10 01
** UNRECOGNIZED: 04 24 02 02
** UNRECOGNIZED: 05 24 01 00 00
** UNRECOGNIZED: 05 24 06 00 00
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x000a 1x 10 bytes
bInterval 9
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 255
bInterfaceSubClass 6
bInterfaceProtocol 19
iInterface 8 Huawei Mobile Connect - Application
** UNRECOGNIZED: 05 24 00 10 01
** UNRECOGNIZED: 04 24 02 02
** UNRECOGNIZED: 05 24 01 00 01
** UNRECOGNIZED: 05 24 06 00 00
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 255
bInterfaceSubClass 6
bInterfaceProtocol 18
iInterface 9 Huawei Mobile Connect - Pcui
** UNRECOGNIZED: 05 24 00 10 01
** UNRECOGNIZED: 04 24 02 02
** UNRECOGNIZED: 05 24 01 00 02
** UNRECOGNIZED: 05 24 06 00 00
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x03 EP 3 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 255
bInterfaceSubClass 6
bInterfaceProtocol 22
iInterface 10 HUAWEI Mobile Connect - Network Card
** UNRECOGNIZED: 05 24 00 10 01
** UNRECOGNIZED: 06 24 1a 00 01 1f
** UNRECOGNIZED: 0d 24 0f 0c 0f 00 00 00 ea 05 03 00 01
** UNRECOGNIZED: 05 24 06 03 03
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x86 EP 6 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0010 1x 16 bytes
bInterval 5
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 1
bNumEndpoints 3
bInterfaceClass 255
bInterfaceSubClass 6
bInterfaceProtocol 22
iInterface 11 CDC Network Data
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x86 EP 6 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0010 1x 16 bytes
bInterval 5
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x85 EP 5 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x04 EP 4 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 4
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 255
bInterfaceSubClass 6
bInterfaceProtocol 6
iInterface 14 Huawei Mobile Connect - Ctrl
** UNRECOGNIZED: 05 24 00 10 01
** UNRECOGNIZED: 04 24 02 02
** UNRECOGNIZED: 05 24 01 00 04
** UNRECOGNIZED: 05 24 06 00 00
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x87 EP 7 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x05 EP 5 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 5
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 255
bInterfaceSubClass 6
bInterfaceProtocol 27
iInterface 15 Huawei Mobile Connect - Serial B
** UNRECOGNIZED: 05 24 00 10 01
** UNRECOGNIZED: 04 24 02 02
** UNRECOGNIZED: 05 24 01 00 05
** UNRECOGNIZED: 05 24 06 00 00
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x88 EP 8 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x06 EP 6 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 0x0120
bNumInterfaces 7
bConfigurationValue 2
iConfiguration 0
bmAttributes 0xa0
(Bus Powered)
Remote Wakeup
MaxPower 2mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 2
bInterfaceSubClass 6
bInterfaceProtocol 0
iInterface 16 CDC Ethernet Control Model (ECM)
CDC Header:
bcdCDC 1.10
CDC Union:
bMasterInterface 0
bSlaveInterface 1
CDC Ethernet:
iMacAddress 18 021E101F0000
bmEthernetStatistics 0x00000000
wMaxSegmentSize 1514
wNumberMCFilters 0x0000
bNumberPowerFilters 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0010 1x 16 bytes
bInterval 5
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 10
bInterfaceSubClass 6
bInterfaceProtocol 0
iInterface 17 CDC Ethernet Data
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 0
bNumEndpoints 3
bInterfaceClass 255
bInterfaceSubClass 6
bInterfaceProtocol 16
iInterface 7 Huawei Mobile Connect - Modem
** UNRECOGNIZED: 05 24 00 10 01
** UNRECOGNIZED: 04 24 02 02
** UNRECOGNIZED: 05 24 01 00 02
** UNRECOGNIZED: 05 24 06 00 00
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x000a 1x 10 bytes
bInterval 9
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 255
bInterfaceSubClass 6
bInterfaceProtocol 19
iInterface 8 Huawei Mobile Connect - Application
** UNRECOGNIZED: 05 24 00 10 01
** UNRECOGNIZED: 04 24 02 02
** UNRECOGNIZED: 05 24 01 00 03
** UNRECOGNIZED: 05 24 06 00 00
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x85 EP 5 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x03 EP 3 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 4
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 255
bInterfaceSubClass 6
bInterfaceProtocol 18
iInterface 9 Huawei Mobile Connect - Pcui
** UNRECOGNIZED: 05 24 00 10 01
** UNRECOGNIZED: 04 24 02 02
** UNRECOGNIZED: 05 24 01 00 04
** UNRECOGNIZED: 05 24 06 00 00
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x86 EP 6 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x04 EP 4 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 5
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 255
bInterfaceSubClass 6
bInterfaceProtocol 6
iInterface 14 Huawei Mobile Connect - Ctrl
** UNRECOGNIZED: 05 24 00 10 01
** UNRECOGNIZED: 04 24 02 02
** UNRECOGNIZED: 05 24 01 00 05
** UNRECOGNIZED: 05 24 06 00 00
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x87 EP 7 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x05 EP 5 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 6
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 255
bInterfaceSubClass 6
bInterfaceProtocol 27
iInterface 15 Huawei Mobile Connect - Serial B
** UNRECOGNIZED: 05 24 00 10 01
** UNRECOGNIZED: 04 24 02 02
** UNRECOGNIZED: 05 24 01 00 06
** UNRECOGNIZED: 05 24 06 00 00
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x88 EP 8 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x06 EP 6 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 0x005f
bNumInterfaces 2
bConfigurationValue 3
iConfiguration 0
bmAttributes 0xa0
(Bus Powered)
Remote Wakeup
MaxPower 2mA
Interface Association:
bLength 8
bDescriptorType 11
bFirstInterface 0
bInterfaceCount 2
bFunctionClass 2
bFunctionSubClass 14
bFunctionProtocol 0
iFunction 13 HUAWEI Mobile Broadband Module
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 2
bInterfaceSubClass 14
bInterfaceProtocol 0
iInterface 10 HUAWEI Mobile Connect - Network Card
CDC Header:
bcdCDC 1.10
CDC MBIM:
bcdMBIMVersion 1.00
wMaxControlMessage 1024
bNumberFilters 32
bMaxFilterSize 128
wMaxSegmentSize 1500
bmNetworkCapabilities 0x20
8-byte ntb input size
CDC MBIM Extended:
bcdMBIMExtendedVersion 1.00
bMaxOutstandingCommandMessages 16
wMTU 1500
CDC Union:
bMasterInterface 0
bSlaveInterface 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0010 1x 16 bytes
bInterval 5
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 10
bInterfaceSubClass 0
bInterfaceProtocol 2
iInterface 11 CDC Network Data
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 1
bNumEndpoints 2
bInterfaceClass 10
bInterfaceSubClass 0
bInterfaceProtocol 2
iInterface 11 CDC Network Data
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.00
bDeviceClass 0
bDeviceSubClass 0
bDeviceProtocol 255
bMaxPacketSize0 64
bNumConfigurations 3
can't get debug descriptor: Resource temporarily unavailable
Device Status: 0x0001
Self Powered
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