Electrical computers and digital processing systems: interprogra – Device driver communication – Device driver configuration
Reexamination Certificate
2005-03-15
2005-03-15
Lee, Thomas (Department: 2126)
Electrical computers and digital processing systems: interprogra
Device driver communication
Device driver configuration
C719S321000, C714S734000, C714S741000, C714S742000
Reexamination Certificate
active
06868545
ABSTRACT:
The time, effort and expense required to develop verification software for testing and de-bugging system-on-chip (SOC) designs represents a considerable investment. According to the method of the present invention, a portion of such verification software may be re-used in an operating system (OS) (i.e., a system used for, e.g., general business, technical or scientific applications as opposed to software testing) to capitalize on the investment.The verification software includes low-level device drivers (LLDDs) which were coded for and paired with specific device designs (“cores”) throughout the verification process, and were consequently also verified (i.e., de-bugged) in the process. Thus, the low-level device drivers represent reliable software with detailed knowledge of the corresponding devices.By developing a thin middle-level device driver layer of software to interface between a particular OS and the lower-level device drivers, the LLDDs can be re-used in an OS that uses devices that the LLDDs were designed for. This frees SOC customers from having to develop low-level software and instead allows them to concentrate on developing their particular applications, or “value-added” software.
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Devins Robert J.
Ferro Paul G.
Herzl Robert D.
Mahler Kenneth A.
Connolly Bove & Lodge & Hutz LLP
Hoang Phuong N.
Hume Larry J.
Lee Thomas
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