[bernie@dozer ~]$ sudo usbguard list-devices -b
111: block id 1058:1140 serial "574341575A31373031313137" name "My Book 1140" hash "c6BnfwGj7C7Ms2XStamWKr29+FSlANfivAmpgXsuBNg=" parent-hash "3Wo3XWDgen1hD5xM3PSNl3P98kLp1RUTgGQ5HSxtf8k=" via-port "4-2" with-interface 08:06:50 with-connect-type "hotplug"
[bernie@dozer ~]$ sudo usbguard allow-device 111
[bernie@dozer ~]$ sudo usbguard list-devices -a
...
111: allow id 1058:1140 serial "574341575A31373031313137" name "My Book 1140" hash "c6BnfwGj7C7Ms2XStamWKr29+FSlANfivAmpgXsuBNg=" parent-hash "3Wo3XWDgen1hD5xM3PSNl3P98kLp1RUTgGQ5HSxtf8k=" via-port "4-2" with-interface 08:06:50 with-connect-type "hotplug"
...