On Kubuntu @ Dell with the same modem:
cat /var/log/usb_modeswitch.log
USB_ModeSwitch log from Thu Mar 12 20:09:49 2020
Use global config file: /etc/usb_modeswitch.conf
Adjust delay for USB storage devices ...
Error: could not access delay_use attribute: No such file or directory
Raw args from udev: 3-4
Bus ID for device not given by udev.
Trying to determine it from kernel name (3-4) ...
Use top device dir /sys/bus/usb/devices/3-4
USB dir exists: /sys/bus/usb/devices/3-4
SCSI dir exists: /sys/bus/usb/devices/3-4
Warning: SCSI attribute "vendor" not readable.
Warning: SCSI attribute "model" not readable.
Warning: SCSI attribute "rev" not readable.
Use interface /sys/bus/usb/devices/3-4/3-4:1.0
----------------
USB values from sysfs:
idVendor 2001
idProduct a706
manufacturer D-Link,Inc
product D-Link DWM-156
serial 536591500189710
bNumConfigurations 3
bConfigurationValue 1
devnum 3
busnum 3
----------------
Found packed config collection /usr/share/usb_modeswitch/configPack.tar.gz
Searching entries named: /usr/share/usb_modeswitch/2001:a706*
Searching overriding entries named: /etc/usb_modeswitch.d/2001:a706*
SCSI attributes not needed, move on.
Extract config 2001:a706 from collection
/usr/share/usb_modeswitch/configPack.tar.gz
config: TargetVendor set to 2001
config: TargetProduct set to 7d01
Driver module is "option", ID path is /sys/bus/usb-serial/drivers/option1
! matched, now switching
Device may have an MBIM configuration, check driver ...
no MBIM driver found, switch to legacy modem mode
Unbinding driver
Command to be run:
/usr/sbin/usb_modeswitch -W -D -s 20 -c /run/usb_modeswitch/current_cfg -b 3
-g 3 -v 2001 -p a706 2>&1
Verbose debug output of usb_modeswitch and libusb follows
(Note that some USB errors are expected in the process)
--------------------------------
Read config file: /run/usb_modeswitch/current_cfg
* usb_modeswitch: handle USB devices with multiple modes
* Version 2.5.2 (C) Josua Dietze 2017
* Based on libusb1/libusbx
! PLEASE REPORT NEW CONFIGURATIONS !
DefaultVendor= 0x2001
DefaultProduct= 0xa706
TargetVendor= 0x2001
TargetProduct= 0x7d01
StandardEject=1
Success check enabled, max. wait time 20 seconds
System integration mode enabled
Use given bus/device number: 003/003 ...
Look for default devices ...
bus/device number matched
found USB ID 2001:a706
vendor ID matched
product ID matched
Found devices in default mode (1)
Get the current device configuration ...
Current configuration number is 1
Use interface number 0
with class 8
Use endpoints 0x01 (out) and 0x81 (in)
USB description data (for identification)
-------------------------
Manufacturer: D-Link,Inc
Product: D-Link DWM-156
Serial No.: 536591500189710
-------------------------
Sending standard EJECT sequence
Looking for active drivers ...
OK, driver detached
Set up interface 0
Use endpoint 0x01 for message sending ...
Trying to send message 1 to endpoint 0x01 ...
OK, message successfully sent
Read the response to message 1 (CSW) ...
Response successfully read (13 bytes), status 0
Trying to send message 2 to endpoint 0x01 ...
OK, message successfully sent
Read the response to message 2 (CSW) ...
Response successfully read (13 bytes), status 0
Trying to send message 3 to endpoint 0x01 ...
OK, message successfully sent
Read the response to message 3 (CSW) ...
Device seems to have vanished after reading. Good.
Device is gone, skip any further commands
ok:busdev
--------------------------------
(end of usb_modeswitch output)
Check success of mode switch for max. 20 seconds ... Read attributes ...
USB dir exists: /sys/bus/usb/devices/3-4
Warning: USB attribute "serial" not readable.
All attributes matched
Mode switching was successful, found 2001:7d01 (D-Link,Inc: D-Link DWM-156)Now
check for bound driver ...
no driver has bound to interface 0 yet
Device not in "bind_list" yet, bind it now
Module loader is /sbin/modprobe
Module is active already
Try to add ID to driver "option"
ID added to driver; check for new devices in /dev
driver binding failed
Check for AVOID_RESET_QUIRK kernel attribute
AVOID_RESET_QUIRK activated
All done, exit
mariusz:~> lsusb
Bus 002 Device 004: ID 0cf3:e004 Qualcomm Atheros Communications
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 004: ID 0c45:648b Microdia Integrated Webcam
Bus 001 Device 003: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card
Reader Controller
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 004: ID 2001:7d01 D-Link Corp. D-Link DWM-156
Bus 003 Device 002: ID 24ae:2003 RAPOO RAPOO 5G Wireless Device
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
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https://bugs.launchpad.net/bugs/1866926
Title:
usb_modeswitch does not switch modems (remain visible as mass storage)
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https://bugs.launchpad.net/ubuntu/+source/usb-modeswitch/+bug/1866926/+subscriptions
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