Electrical computers and digital data processing systems: input/ – Input/output data processing – Peripheral monitoring
Reexamination Certificate
2007-07-31
2010-12-14
Sorrell, Eron J (Department: 2182)
Electrical computers and digital data processing systems: input/
Input/output data processing
Peripheral monitoring
C710S002000, C710S016000, C710S017000, C710S062000, C710S301000
Reexamination Certificate
active
07853730
ABSTRACT:
Method and system for latency-independent peripheral device identification. The computer system receives an interrupt from a peripheral device via a communications port. In response, an interrupt notification message is posted to alert a notification handler, and compliant peripheral class is determined. The voltage on a device may sense pin of the communications port for this determination. If the interrupt is indicative of the compliant peripheral class and the communications port is inactive, the port is opened, and an inquiry is sent and a response is received. If a response is received within a predetermined time period, an identification notification message is posted based on the response including information for classifying the peripheral device, so that a software handler registered with the operating system can handle the identification notification message when the software handler receives it. Thus, no time-critical interrupt response requirement is imposed for its successful operation.
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Ebert Bob
Karstens Rich
Lemke Steve
Palm Inc.
Sorrell Eron J
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