Patent ID: 8230149

Claim:
A method of managing a peripheral port of a computer system comprising: identifying, within the computer system, a descriptor list for communicating data with a peripheral device, wherein the descriptor list comprises transfer commands generated by a bus controller driver of a Central Processing Unit (CPU) of the computer system and executable by a bus controller for the peripheral port; and manipulating the descriptor list to manage communications via the peripheral port between the peripheral device and resources of the CPU of the computer system, wherein manipulating the descriptor list comprises altering information in the descriptor list to selectively prevent the communication of the data, wherein the peripheral device is located at a remote computer and the resources of the CPU of the computer system are located at a host computer, wherein the remote computer and the host computer are coupled to one another through a network, and wherein the remote computer comprises the peripheral port, wherein manipulating comprises managing a shadow list in the remote computer, the shadow list associated with the descriptor list.