Use this procedure if a USB device is removed while the system is powered off. Removing the USB device while the system is powered off can leave device links for devices that do not exist.
Choose one of the following commands:
devfsadm -C -c USB-class
The following example removes the unused links for the audio class of devices.
# devfsadm -C -c audio
devfsadm -C
The command removes all dangling links.