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3 votes
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Why does the device names in lsusb differ from dmesg?

USB devices provide a few different pieces of information about themselves; notably, a vendor identifier, product identifier, vendor name and product name. The latter two aren’t always accurate, and a ...
Stephen Kitt's user avatar
2 votes

Is it possible to programmatically identify the number of physical USB ports on a Lenovo ThinkCentre?

You can't; the operating system only sees how many ports a hub IC has, not how many are connected to external USB ports.
Marcus Müller's user avatar
1 vote
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alsamixer / amixer supported usb audio class 2 controls

There is no such list of supported controls since… whatever control element appropriately exposed by the device can be taken into account by amixer, v.g listed by the amixer scontrols command and ...
MC68020's user avatar
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1 vote

Is it possible to programmatically identify the number of physical USB ports on a Lenovo ThinkCentre?

You could get the information from their support center. There are no web services that I know of, but the html output is parsable. This is only for the computers the OP mentioned. First get the ...
Eduardo Trápani's user avatar
1 vote
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USB 4G Modem Not Detected on Raspberry Pi with NetworkManager

Information found in arch-linux wiki: You need the usb-modeswitch package to be installed and the cdc_ether kernel module to be loaded: sudo apt install usb-modeswitch sudo modprobe -v cdc_ether
GAD3R's user avatar
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1 vote

USB 4G Modem Not Detected on Raspberry Pi with NetworkManager

Look at the output of lspci -k and check if a kernel module is loaded for that device. The hardware support for wireless hardare on RPi is spotty and I had to compile my own kernel modules a few times ...
spoutnik's user avatar

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