lsusb
mais propret :
lsusb | awk '{$1=$2=$3=$4=$5=$6="";print $0}' | sed -e 's/^[ \t]*/ > /' | uniq
D'abord on l'identifie :
dmesg | grep usb
[74587.599565] usb 1-8: new full-speed USB device number 4 using xhci_hcd
echo 1-8 > /sys/bus/usb/drivers/usb/unbind
echo 1-8 > /sys/bus/usb/drivers/usb/bind