Method and system to encapsulate a driver written for an...

Details Method and system to encapsulate a driver written for an... Method and system to encapsulate a driver written for an...

2007-02-20

2007-02-20

Butler, Dennis M. (Department: 2115)

Electrical computers and digital processing systems: support

Digital data processing system initialization or configuration

Loading initialization program

C713S001000

Reexamination Certificate

active

10681505

ABSTRACT:
A system and method is described that takes an existing operating system (OS) level driver and transforms it into a firmware extension, in one embodiment, for the extensible firmware interface (EFI). In one embodiment, an existing driver is stored in flash memory, without modification. When initializing the system, a mapping driver examines this image. Based on a determined image format and subtype, it is known whether the existing driver is compatible with Linux, Windows, fcode, or another type. Based on the type, the mapping driver either fills in the blanks and maps directly to the EFI services, or rewrites some of the flash with binary (in memory). The driver is typically compressed when in flash memory. Once the OS is booted, the OS uses its own driver.

REFERENCES:
patent: 6971003 (2005-11-01), Mahmoud
patent: 6978018 (2005-12-01), Zimmer
patent: 2003/0115443 (2003-06-01), Cepulis et al.
patent: 2004/0034764 (2004-02-01), Bulusu et al.

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