Electrical computers and digital data processing systems: input/ – Input/output data processing – Peripheral configuration
Reexamination Certificate
2004-05-25
2009-08-18
Sorrell, Eron J. (Department: 2182)
Electrical computers and digital data processing systems: input/
Input/output data processing
Peripheral configuration
C710S008000, C713S323000, C713S324000, C713S340000, C719S327000, C719S328000
Reexamination Certificate
active
07577765
ABSTRACT:
Techniques are disclosed to provide advanced power management in generic USB drivers. More particularly, a generic USB device driver architecture is described which enables development through a user-mode USB library that accesses a generic kernel-mode driver. The architecture may be utilized to provide advanced power management. In a described implementation, a method includes defining a power management policy for a device plugged into a computing system and utilizing the defined power management policy to determine when the device enters a suspend mode. Once the device enters the suspend mode, the method allows the computing system to enter a lower-power state. In a further described implementation, the power management policy is defined through a plurality of routines provided by a generic user-mode library (e.g., a dynamic link library (DLL)), where the generic user-mode library is communicatively coupled to a kernel-mode generic device driver.
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Aull Randall E
Bhesania Firdosh K.
Microsoft Corporation
Phan Dean
Sorrell Eron J.
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