Patents by Inventor Sai Prasad Paithara Balagangadhara

Sai Prasad Paithara Balagangadhara has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Virtual general-purpose I/O controller
    Patent number: 9417801
    Abstract: Technologies for virtual general purpose I/O (GPIO) include a computing device having a virtual GPIO controller driver, a virtual GPIO controller firmware interface, and a virtual GPIO controller. The driver receives a GPIO command from an operating system of the computing device. The GPIO command specifies an operation to be performed by a GPIO pin. The driver sends the GPIO command to the firmware interface. In response to the firmware interface receiving the command, the virtual GPIO controller emulates a virtual GPIO pin to implement the GPIO command. The firmware interface may trigger an interrupt that can be received by the operating system. The virtual GPIO controller may emulate the virtual GPIO pin using firmware-reserved backing memory, an embedded controller, or an interface to a peripheral device of the computing device. The firmware interface may be an ACPI control method. Other embodiments are described and claimed.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: August 16, 2016
    Assignee: Intel Corporation
    Inventors: Nicholas J. Adams, Robert E. Gough, Sai Prasad Paithara Balagangadhara, Pronay Dutta
  • VIRTUAL GENERAL-PURPOSE I/O CONTROLLER
    Publication number: 20150277778
    Abstract: Technologies for virtual general purpose I/O (GPIO) include a computing device having a virtual GPIO controller driver, a virtual GPIO controller firmware interface, and a virtual GPIO controller. The driver receives a GPIO command from an operating system of the computing device. The GPIO command specifies an operation to be performed by a GPIO pin. The driver sends the GPIO command to the firmware interface. In response to the firmware interface receiving the command, the virtual GPIO controller emulates a virtual GPIO pin to implement the GPIO command. The firmware interface may trigger an interrupt that can be received by the operating system. The virtual GPIO controller may emulate the virtual GPIO pin using firmware-reserved backing memory, an embedded controller, or an interface to a peripheral device of the computing device. The firmware interface may be an ACPI control method. Other embodiments are described and claimed.
    Type: Application
    Filed: March 27, 2014
    Publication date: October 1, 2015
    Inventors: Nicholas J. Adams, Robert E. Gough, Sai Prasad Paithara Balagangadhara, Pronay Dutta