USB Port Management Parameters

This group of parameters is used to manage USB controller settings of your virtual machines. The parameters syntax is as follows:

prlctl set < ID | name > --device-add usb [--enable|--disable]

[--connect|--disconnect]

All USB controller-related parameters are explained in the following table:

Parameter Name	Description
`usb`	Informs the `prlctl set` command that the device to be added to the virtual machine is a USB controller. Note : A virtual machine can use only one USB controller. However, you can connect up to eight USB 2.0 ports and two USB 1.0 ports to the virtual machine.
`--enable`	Enables the specified USB controller. All newly added USB controllers are enabled by default (provided the `--disable` option is omitted).
`--disable`	Temporarily disables the operations with the specified USB controller.
`--connect`	Use this option to have the specified USB controller automatically enabled inside the virtual machine on its start.
`--disconnect`	Use this option if you do not wish to have the specified USB controller automatically enabled inside the virtual machine on its start.