We cannot really distinguish between USB and non-USB here,
as port[2] is 'n/a' on FreeBSD.
--- plugins/USBPrinting/USBPrinterOutputDeviceManager.py.orig 2020-07-23 19:29:25 UTC
+++ plugins/USBPrinting/USBPrinterOutputDeviceManager.py
@@ -123,8 +123,6 @@
port = (port.device, port.description, port.hwid)
if not port[2]:
continue
- if only_list_usb and not port[2].startswith("USB"):
- continue