Method for determining status of a computer device and...

Details Method for determining status of a computer device and... Method for determining status of a computer device and...

2005-02-01

2005-02-01

Gaffin, Jeffrey (Department: 2182)

Electrical computers and digital data processing systems: input/

Input/output data processing

Peripheral monitoring

C710S015000, C710S018000, C710S017000, C710S048000

Reexamination Certificate

active

06850994

ABSTRACT:
A method and system allows a device driver to obtain the status of a device that may exhibit one of two distinct behaviors in responding to status requests that designate a plurality of event types associated with a device. Devices exhibiting the first behavior respond to the status requests by providing the status for the highest priority event type designated in the status request. Device exhibiting the second behavior respond to the status requests by providing the status for the highest priority event type that has undergone a status change. In one implementation, the device driver transmits a series of distinct status requests such that the status of all event types can be determined. In a related aspect of the invention, the device driver also analyzes the response message to determine if the device exhibits the second behavior type. When the second behavior type is detected, only a single type of status request is sent to obtain the status of all event types.

REFERENCES:
patent: 5864686 (1999-01-01), Kaiser et al.
patent: 6249826 (2001-06-01), Parry et al.
patent: 6314476 (2001-11-01), Ohara
13.5 Get Event/Status Notification Command; Proposal for a Small Form Factor Committee Specification of: Mt. Fuji Commands for Multimedia Devices; SFF8090i v5; Revision 1.1; Nov. 8, 2000; pp. 1-26; 263-273.

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