Providing fallback drivers for IO devices in a computing system
US10620963B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2017 |
| Grant date | Apr 14, 2020 |
| Priority date | — |
| Expiry date | Mar 29, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2009/45579
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of providing software support of an input/output (IO) device of a computing system having an advanced configuration and power interface (ACPI) subsystem executing therein is described. The method includes: processing an ACPI namespace to determine first and second identifiers of the IO device; determining absence of a device driver for the IO device based on the first identifier; and loading a first fallback device driver portion based on the second identifier, the first fallback device driver portion providing an interface to a control method in the ACPI namespace, the control method executable by the ACPI subsystem to implement a second fallback device driver portion that supports at least a portion of functionality for the IO device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.