How to Logically Disconnect a USB Device Subtree

Use this procedure to disconnect a USB device subtree, which is the hierarchy (or tree) of devices below a hub.

1. Become superuser.

2. Remove a USB device subtree.

   # cfgadm -c disconnect -y usb0/4

3. Verify that the USB device subtree is disconnected.

   # cfgadm usb0/4 Ap_Id Type Receptacle Occupant Condition usb0/4 unknown disconnected unconfigured ok