Electrical computers and digital processing systems: interprogra – Device driver communication – Device driver configuration
Reexamination Certificate
2005-10-25
2005-10-25
Donaghue, Larry D. (Department: 2154)
Electrical computers and digital processing systems: interprogra
Device driver communication
Device driver configuration
C719S324000, C710S008000
Reexamination Certificate
active
06959440
ABSTRACT:
A parent driver desiring to access a service of a child driver in a driver stack creates a virtual device object. The virtual device object is inserted into the driver stack below the child driver. When a query to dynamically remove the driver stack arrives at the virtual device object, the virtual device object notifies the parent driver. The parent driver stops accessing the child driver before directly receiving and processing the remove query, allowing the driver stack to be removed after all drivers in the driver stack process the remove query.
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Donaghue Larry D.
Green Sharmini N.
Siddiqi Mohammad
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