I'm testing a Tinker board, which is an ARM gadget running Debian 9.8. I inserted a USB modem. It appears the modem was detected but I can't find a device for it:
[ 8178.815663] usb 1-1.1.5: new full-speed USB device number 11 using dwc2 [ 8179.245691] usb 1-1.1.5: New USB device found, idVendor=0572, idProduct=1300 [ 8179.245712] usb 1-1.1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 8179.245726] usb 1-1.1.5: Product: USB HSF Modem [ 8179.245738] usb 1-1.1.5: Manufacturer: Conexant Systems, Inc.
$ ls /dev/*ACM* ls: cannot access '/dev/*ACM*': No such file or directory $ ls /dev/*USB* ls: cannot access '/dev/*USB*': No such file or directory
Debian has a wiki page at HowToIdentifyADevice | USB but I can't really tell what I need to do. On Fedora I open
/dev/USB0, depending on the modem being used.
How can I determine the device assigned to the the USB modem?
The answers I have found are in the context of a hard drive, like Useful Ways to Know Plugged USB Device Name in Linux and How to determine which sd* is usb?. Obviously a modem is not assigned a hard disk name.
Here's a similar question for RPI's, but it shows the modem being assigned a
/dev/USBn device, which is not happening for this modem: No IP for USB 3G modem Huawei E3131 using modemmanager
# lsusb Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 011: ID 0572:1300 Conexant Systems (Rockwell), Inc. SoftK56 Data Fax Voice CARP Bus 001 Device 009: ID 046d:c05a Logitech, Inc. M90/M100 Optical Mouse Bus 001 Device 007: ID 1c4f:0002 SiGma Micro Keyboard TRACER Gamma Ivory Bus 001 Device 005: ID 2101:8501 ActionStar Bus 001 Device 003: ID 2101:8500 ActionStar Bus 001 Device 002: ID 05e3:0610 Genesys Logic, Inc. 4-port hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 002: ID 0bda:481a Realtek Semiconductor Corp. Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub