Layered SCSI device driver with error handling circuit providing

Details Layered SCSI device driver with error handling circuit providing Layered SCSI device driver with error handling circuit providing

1991-02-12

1994-04-26

Lee, Thomas C.

Boots, shoes, and leggings

395275, 395325, 395500, 395575, 364239, 3642655, 36492693, 36492799, 3649292, 3649439, 3649447, 364DIG2, G06F 1300, G06F 1100

Patent

active

053074912

ABSTRACT:
A tiered device driver system includes a SCSI generic device driver (SGDD) in one tier and one or more SCSI device-class drivers (SDCD) in another tier. In response to a request to access a SCSI device, the operating system creates a request packet that is passed to the appropriate SDCD. Such SDCD creates a generic request packet and associated data structures that contain information specific to the SCSI device being accessed. The generic request packet is passed on to a SCSI generic device driver (SGDD) that creates a SCSI ABIOS request block which it transmits to a SCSI adapter for accessing the desired SCSI device. The SGDD provides functions common to the SDCDs.

REFERENCES:
patent: 4649479 (1987-03-01), Advani et al.
patent: 5083262 (1992-01-01), Haff, Jr.
patent: 5136709 (1992-08-01), Shirakabe et al.
patent: 5179666 (1993-01-01), Rimmer et al.

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