Complain if we get an error that is not ENXIO while opening /dev/usb\d+ devices. For example, starting 'usbd -e' would give a 'No USB controllers found' message instead of a '/dev/usb0: Permission denied'.
Complain if we get an error that is not ENXIO while opening /dev/usb\d+
devices. For example, starting 'usbd -e' would give a 'No USB
controllers found' message instead of a '/dev/usb0: Permission denied'.

Submitted-By:  Dirk-Willem van Gulik <0939be7d449d41b4e43e5736baf15e2acba645e2@webweaving.org>

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