Device driver system having generic operating system interface
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United States of America Patent
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-
Nov 23, 1993
Grant Date -
N/A
app pub date -
Mar 26, 1991
filing date -
Mar 26, 1991
priority date (Note) -
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status (Latency Note)
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Abstract
A device driver system comprises a core that manages the specific functions of a plurality of I/O devices. The core includes an operating system interface that is generic to different operating systems. An operating system has a device driver interface that is unique to the operating system. A conversion program is layered between the core and the operating system for converting communications between the device driver interface of the operating system and the generic operating system interface of the core. The core includes a channel manager including a request dispatcher, request queues, a command initiator, and a plurality of state machines corresponding to state machine in the I/O devices. A transport layer interfaces between the hardware and the channel manager.
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