International Business Machines Corporation

Stephan Otis Broyles

Hemlata Nellimarla

Douglas Michael Boecker

Alwood Patrick Williams, Iii

Scott Allen Liebl

Priti Bavaria

Glenn Eric Rinkenberger

Robert Allan Faust

Joel Gerard Goodwin

Atit D Patel

Michael Anton Barenys

Thomas W Aarts

Andreas Arnez

William G Hoffa

According to one aspect of the present disclosure, a method and technique for a hybrid platform-dependent simulation interface is disclosed. The method includes: encoding an application with a library having a platform-independent application programming interface (API) for interacting with a simulation engine, the simulation engine providing a simulated environment for hosting the application; and encoding the library with a platform-dependent API providing an interface to the simulation engine using a platform-dependent hardware element, the platform-dependent hardware element unaffecting a non-simulation environment when the application is running in the non-simulation environment.

Hybrid platform-dependent simulation interface

A data processing system and computer instructions in a data processing system for identifying device configurations. Unique identification information is identified for a set of devices in the data processing system. The identified unique identification information is compared with previously identified unique identification information. Configuration data is moved to a memory for devices in the set of devices in which a match exists between the identified unique identification information and the previously identified unique identification information for devices. Configuration information is obtained from a device in which configuration information is absent in the memory after configuration data has been moved to the memory for the devices to form a current set of configuration data for the set of devices.

Performing device configuration rediscovery

A method, apparatus and computer instructions in a data processing system for identifying device configurations. Unique identification information is identified for a set of devices in the data processing system. The identified unique identification information is compared with previously identified unique identification information. Configuration data is moved to a memory for devices in the set of devices in which a match exists between the identified unique identification information and the previously identified unique identification information for devices. Configuration information is obtained from a device in which configuration information is absent in the memory after configuration data has been moved to the memory for the devices to form a current set of configuration data for the set of devices.

A mechanism is provided for locking an end device for the period of time that the device is needed, thus disabling access by any other application or process. Having the device locked, rather than the bus, allows other applications to use the bus to access other devices at the same time. This is achieved by providing a virtual bus arbitration, which arbitrates applications' use of the physical bus. The virtual bus arbitration algorithms allow bus operations from different applications to overlap on the physical bus as long as their target devices and associated bus locks are on different end devices.

Device address locking to facilitate optimum usage of the industry standard IIC bus

A method, apparatus, and computer instructions for transferring data from a master to a set of applications executing on a slave. Data is received from a master at a device driver in the slave. The data is parsed for an identifier by a virtual hub in the slave, wherein the identifier is associated with the data by the master. The data is sent to an application within the set of applications based on the identifier.

Method and apparatus for transferring data to virtual devices behind a bus expander

A method, apparatus, and computer instructions for managing requests for data by processes in a data processing system. Requests for data from the processes in slave mode are tracked. Data received by a device driver is stored, wherein the data may originate from multiple masters. The data is sent to the processes, wherein the device driver is not required to handle requests for the processes in slave mode.

Method and apparatus for multiple slaves to receive data from multiple masters in a data processing system

A system, method, and product are disclosed in a data processing system for serializing hardware reset requests in a software communication request queue in a processor card. The processor card processes software communication requests utilizing the queue in a serial order. A hardware reset request is received by the processor card and put in the queue. The hardware reset request is processed from the queue in the serial order with all requests from the queue that are currently being serviced have completed being serviced.

Method, system and product for serializing hardware reset requests in a software communication request queue

An IC device is disclosed that includes a main IC section, bus switches, switch logic, and address logic as part of the IC device. The IC device is coupled to an IC bus for communicating with other IC devices and an IC bus controller that is also on the IC bus. The switch logic controls a current position of the switches. The IC device is coupled to the IC bus utilizing the switches. The switches control whether the main IC section, the address logic, the switch logic, or a combination of the main IC section, address logic, and switch logic is currently coupled to IC bus. The switches also can be used, if desired to remove from the buss all devices that are downstream from a given device containing switches. The address logic is used to receive and store the address of the IC device. The IC device will respond to the address that is stored in its address logic.

Growing community of inventors

Austin, TX, United States of America

Stephan Otis Broyles