How to Reset a USB Device

If a USB device behaves erratically, use the cfgadm command to reset the device, which logically removes and recreates the device.

1. Become superuser.

2. Make sure the device is not in use.

3. Reset the device.

   # cfgadm -x usb_reset -y usb0/4.7

4. Verify that the device is connected.

   # cfgadm usb0/4.7 Ap_Id Type Receptacle Occupant Condition usb0/4.7 usb-storage connected configured ok