Currently, the USB networking setup using configfs does not configure a "serialnumber" for the USB gadget. This means that an empty serial number will be sent during USB enumeration. This is usually not a problem, but it seems to cause issues under special circumstances (on asus-me176c on one of my PCs). The USB Gadget configfs documentation also suggests setting the "serialnumber": https://www.kernel.org/doc/Documentation/usb/gadget_configfs.txt It can be any string, so we can just set it as "postmarketOS" like the manufacturer.
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postmarketOS aports
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