User mode device driver interface for translating source...

Details User mode device driver interface for translating source... User mode device driver interface for translating source...

2005-03-22

2005-03-22

An, Meng-Al T. (Department: 2126)

Electrical computers and digital processing systems: interprogra

Device driver communication

Video graphics device driver

C719S322000, C719S324000, C719S327000

Reexamination Certificate

active

06871350

ABSTRACT:
A user mode device driver interface (UMDDI) is disclosed. The UMDDI is preferably implemented in Windows® NT® version 5.0 and similar systems. The UMDDI allows a device driver to execute in user-mode while the graphics engine (GRE) remains in kernel-mode. The UMDDI exists as a layer between the user-mode driver and GRE; from the perspective of GRE, it encapsulates the user-mode driver and makes it appear to be a normal kernel-mode driver. The UMDDI layer handles the kernel-to-user and user-to-kernel transitions, parameter validation, and management of the kernel-mode and user-mode data and objects.

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Creating User—Mode Device Drivers with a Proxy, Hunt, Galen C., Usenix Assoc., pp. 55-59.*
Camp Tracy et al. “Microkernels: A Submodule for a Traditional Operating Systems Course” Mar. 95 pp. 154-158.*
Gamma Erich et al. “Design Patterns” 1994 Addison Wesley pp. 207-217.*
Hunt G.C. “Creating user-mode device drivers with a proxy” USENIX Assoc. Aug. 1997 pp. 55-59.

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