Method for providing asynchronous event notification in systems
US8631284B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 30, 2010 |
| Grant date | Jan 14, 2014 |
| Priority date | — |
| Expiry date | Jul 1, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/42
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method is provided for asynchronous notifications from a device to a host in systems without requiring hardware provision for asynchronous operations. In an embodiment of the invention, a system supports command queuing and a command is sent from a host to a device. The device receives the command and an associated tag, and accepts the command as valid. After accepting the command, the device begins monitoring for asynchronous events. If an asynchronous event is detected, the device provides notification of the event by sending a response and the associated tag to the host. In another embodiment of the invention, a method of asynchronous notification enables use of invalid tags. In a further embodiment of the invention, asynchronous notifications may be enabled by a host and operate without additional host commands.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.