Method and apparatus for detecting the presence of and disabling

Details Method and apparatus for detecting the presence of and disabling Method and apparatus for detecting the presence of and disabling

1997-11-24

1999-08-17

Barry, Lance Leonard

395836, G06F 1300

Patent

active

059405864

ABSTRACT:
The present invention provides a method and apparatus for enabling or disabling an ISA adapter or bus expansion device. In one embodiment of the invention, the housing slot is first checked to see whether the device is installed. If the device is installed and is malfunctioning or defective, the device is then isolated or disabled to allow the system to continue to operate. In another embodiment of the invention, a check is done to determine whether the housing slot has changed from an empty to a full status and vice versa. This check determines whether configuration status of an adapter, stored in memory, should be deleted. This check also allows for the differentiation of a PNP adapter card from a legacy adapter card.

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