I use my linux box to back up my SD cards.
I leave the box on all the time.
Each time I plug a card it adds a new USB device number.
Is there an upper limit to this number or can I reset it?
Will it cause problems if the number goes too high.
Here is what it looks like in dmesg
[ 9987.399540] usb 1-1.5: USB disconnect, device number 18
[ 9991.727688] usb 1-1.5: new high-speed USB device number 19 using dwc_otg