Device activity triggered device diagnostics
US8112674B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 1, 2009 |
| Grant date | Feb 7, 2012 |
| Priority date | — |
| Expiry date | Oct 17, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2736
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A diagnostic control methodology provides reduced disruption of device operation when performing diagnostics on devices within a computer system. A diagnostic application notifies a device driver that controls a particular device that diagnostics should be performed during a period of low activity on the device. In response to receiving the notification, the device driver waits for a time of low activity and either notifies the application to unload the device driver and load a diagnostic device driver, or enters a diagnostic mode directly if such operation is supported by the functional device driver. A timeout duration can be specified, and may be set by the notification, so that the diagnostics will be performed within the timeout period even if a time of low activity has not occurred by the expiration of the timeout.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.