Patent ID: 9619005
Date: 2017-04-11
CPC Classifications: G06F,Y02D

Claim:
1. A method of supporting a selective suspend mode of a composite network device, the method comprising: sending, by a bus driver included in a network driver of a host device, an idle request IRP to a composite driver of the host device when the composite network device requests selective suspend; sending, by the bus driver, power state transition information to the composite driver and shifting a power state of the bus driver of the host device from a normal state to an intermediate sleep state; and shifting, by the composite driver of the host device, a power state from the normal state to the intermediate sleep state according to the power state transition information, wherein the composite driver includes a functional drive object (FDO) and a physical device object (PDO), and wherein, when the composite network device is shifted to the selective suspend mode, the bus driver and the FDO and the PDO of the composite driver are in the intermediate sleep state and an NDIS miniport driver included in the network driver of the host device is in the normal state.