Don't filter out USB serial printers #169
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This allows sending commands to label printers, many of which use text-based protocols (ZPLII, EPL, TSPL2, etc) and show up as /dev/usb/lpX.
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They're not serial devices though and most of the settings won't work. You should be able to open it as a file and write and read from it. All the parsers and whatnot will work with data from a file stream. |
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Sure they aren't always technically "real" serial ports, but it would be nice if they could be discovered and listed with this library. |
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Many label printers use text-based protocols (ZPLII, EPL, TSPL2, etc) and show up as /dev/usb/lpX.