Abstract: A communication link between a host device and a client device can be suspended based on a suspend request or notification provided by the client device. The suspend request can be transmitted by a client device to a host device if the client device determines that suspension is appropriate, and can be sent in response to receiving a polling request from the host device. After receiving a suspend request, the host device can initiate an operation to suspend the communication link between the devices.

Abstract: A host device can enable operation with a client device based on stored or cached enumeration information. The enumeration information can be initially received from the client device during a first configuration process, and stored or cached in volatile and/or non-volatile storage accessible by the host device. During subsequent configuration processes, operation with the client device can be enabled based on the stored or cached enumeration information. Operation between the host device and the client device can be facilitated through a communication protocol, such as the universal serial bus (USB) protocol. A host device and client device can be connected via a traditional USB or USB High Speed Inter-Chip (HSIC) connection.

Abstract: A method for authenticating a multiple interface accessory device is provided. The method includes receiving enumeration information identifying the multiple interfaces supported by the accessory. The enumeration information includes information about a master interface supported by the accessory. A host device obtains authentication information from the accessory in accordance with a protocol associated with the master interface. Based on the authentication information, the host device determines whether the accessory is authorized to communicate with the host device. In the event that the accessory is authorized, the host device permits communication with the accessory using one or more of the multiple interfaces supported by the accessory.

Abstract: A host/peripheral local interconnect that is compatible with a self-configurable peripheral device is described. According to processes discussed herein, the peripheral device is self-configured. The host device may be kept aware of the self-configured state of the peripheral device, and/or self-configured changes made at the peripheral device. The host device may scale its applications/uses of the peripheral device in light of such awareness.

Abstract: A host/peripheral local interconnect that is compatible with a self-configurable peripheral device is described. According to processes discussed herein, the peripheral device is self-configured. The host device may be kept aware of the self-configured state of the peripheral device, and/or self-configured changes made at the peripheral device. The host device may scale its applications/uses of the peripheral device in light of such awareness.