Protocol for communication with a user-mode device driver
US7603484B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2005 |
| Grant date | Oct 13, 2009 |
| Priority date | — |
| Expiry date | May 2, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/4413
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A user-mode device driver architecture is provided by the subject invention. The architecture includes a reflector, a driver manager and a host process which hosts and isolates one or more user-mode device driver(s). The user-mode device driver runs in the user-mode (UM) environment and has access to various UM services. The reflector resides in “kernel memory” (e.g., memory/resource(s) available to operating system) while the driver manager, host process and user mode device driver(s) are located in user space (e.g., memory/resource(s) available to user application(s)). The reflector provides a secure, stable communication path for application(s), the host process and/or user-mode device driver(s) to communicate with the operating system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.