Some embodiments provide a method for synchronizing state between multiple smart NICs of a host computer that perform operations using dynamic state information. At a first smart NIC of the plurality of smart NICs, the method stores a set of dynamic state information. The method synchronizes the set of dynamic state information across a communication channel that connects the smart NICs so that each of the smart NICs also stores the set of dynamic state information.

An information processing apparatus, among a plurality of information processing apparatuses, to which one of pieces of local data is assigned, the pieces of local data having been obtained by dividing global data shared by the plurality of information processing apparatuses, includes: a storage unit that includes a first storage area sectioned into prescribed units, and stores local data; a processor that executes a process including: detecting a plurality of continuous sections to which the target local data is to be written in a second storage area that is sectioned into the prescribed units in the different information processing apparatus, on the basis of storage area information that identifies data to which the target local data corresponds in the global data; and extracting as many pieces of local data as specified by the number of the continuous sections and transmitting the data to the different information processing apparatus.

Systems and methods for implementing a user mode virtual serial communications port emulator are disclosed herein. According to an aspect, a method for a virtual serial communications port emulator includes using at least one processor and memory for creating a virtual serial communication port (VCP) driver in a user mode of an operating system. The method further includes emulating a physical serial communication port using the VCP driver. In addition, the method includes converting outgoing data from an application executed on the at least one processor and memory via the VCP driver into a format complying with a protocol associated with a VCP device server. The method also includes converting incoming data from the VCP device server complying with the protocol into a second format understood by the application, wherein the VCP driver is communicated with using an unpublished universally unique identifier (UUID).

A circuit and a method for controlling an audio adapter are provided. The audio adapter includes a button and a microphone, and the microphone is adapted for generating a recorded data. The control circuit includes a button detection circuit, a first-in, first-out (FIFO) data buffer, a USB endpoint buffer, a mute circuit and a USB endpoint control circuit. The button detection circuit is used for detecting whether the button is triggered. The FIFO data buffer is used for storing the recorded data. The USB endpoint buffer is used for storing the recorded data. The mute circuit is used for controlling whether the recorded data is transmitted to the USB endpoint buffer according to whether the button is triggered. The USB endpoint control circuit is used for controlling whether the audio adapter outputs the recorded data according to whether the button is triggered.

An integrated circuit is provided. The integrated circuit includes a mapping circuit configured to determine a state associated with a first universal series bus (USB) communication mode based on one or both of a signal level on a first data line and a signal level on a second data line. The integrated circuit also includes a line state converter circuit configured to generate a line state associated with a second USB communication mode based on the determined state and based on one or both of the signal level on the first data line and the signal level on the second data line.

A system and method for data conversion includes a transmitter configured to receive high-speed data and convert it into wireless low-speed data for output to a receiver. The transmitter includes a radio device and one or more processors for converting the high-speed data to low-speed data. Once received by the receiver, the low-speed data may be output for use directly by equipment which uses such data, or it may be reconverted to high-speed data and output to equipment that utilizes high-speed data signals.

An I/O (Input/Output) adapter device can present itself as a network backend driver with an emulated network backend driver interface to a corresponding network frontend driver executing from an operating system running on a host device independent of a virtualization or non-virtualization environment. For each guest operating system executing from its respective virtual machine running on the host device, para-virtualized (PV) frontend drivers can communicate with corresponding PV backend drivers implemented by the I/O adapter device using a corresponding virtual function by utilizing SR-IOV (single root I/O virtualization) functionality.

An interface device (10) provides fast data communication between a host device with input/output interfaces and a data transmit/receive device, wherein the interface device (10) comprises a processor means (13), a memory means (14), a first connecting device (12) for interfacing the host device with the interface device, and a second connecting device (15) for interfacing the interface device (10) with the data transmit/receive device. The interface device (10) is configured by the processor means (13) and the memory means (14) in such a way that, when receiving an inquiry from the host device via the first connecting device (12) as to the type of a device attached to the host device, regardless of the type of the data transmit/receive device, the interface device sends a signal to the host device via the first connecting device (12) which signals to the host device that it is communicating with an input/output device.

An apparatus is provided that includes a set of registers, and an interface of a computing block. The computing block includes one of a physical layer block or a media access control layer block. The interface includes one or more pins to transmit asynchronous signals, one or more pins to receive asynchronous signals, and a set of pins to communicate particular signals to access the set of registers, where a set of control and status signals of a defined interface are mapped to respective bits of the set of registers.

A USB tunnel apparatus is disclosed herein. In various aspects, the USB tunnel apparatus may include a USB printer class interface operatively received by an application specific USB peripheral. The USB printer class interface is configured to identify the application specific USB peripheral as a printer class device to the host during Plug and Play enumeration, and the USB printer class interface is configured to generate a response during Plug and Play enumeration that alters the process of PnP enumeration to create a partially instantiated printer driver stack on the host when the application specific USB peripheral is in USB communication with the host, in various aspects. Related methods and compositions of matter are also disclosed. This Abstract is presented to meet requirements of 37 C.F.R. §1.72(b) only. This Abstract is not intended to identify key elements of the apparatus, methods, and compositions of matter disclosed herein or to delineate the scope thereof.