Dell Products Inc.

Loren Fredlund

Alok Pant

Kendall C Witte

James L Walker

Kurt J Lippert

Nathan Vecera

A system and method for BIOS and controller communication is provided herein. The system may include an information handling system that includes a central processing unit coupled to a memory. The memory may contain a basic input/output system (BIOS). The information handling systems may also include a controller coupled to a nonvolatile memory and a register coupled to the central processing unit and the controller. The controller may be operable to store a key in the nonvolatile memory; write the key to the register in response to a signal from the BIOS; receive a command from the BIOS; verify the command is from the BIOS using the key; and execute the command if the command is from the BIOS.

System and method for BIOS and controller communication

A system and method for BIOS and controller communication. An information handling system comprises a central processing unit coupled to a memory. The memory further comprises a BIOS. The information handling system further comprises a controller coupled to a nonvolatile memory, and a register coupled to the central processing unit and the controller. The controller is operable to initialize communication with the BIOS, and service commands from the BIOS. The central processing unit is operable to initialize communication with the controller, and send commands to the controller. A method for communication between a BIOS and a controller in an information handling system comprises initializing communication between the BIOS and the controller. The method further comprises encrypting a command using a key by the BIOS, and sending the command to the controller. The controller processes the command, and the BIOS receives the result.

A method for reducing the receipt of multiple signals in a portable information handling system (IHS) is closed including receiving a first signal corresponding to a detected lid position of the portable IHS. The method further includes determining if a first predetermined amount of time has elapsed and if the first predetermined amount of time has not elapsed, preventing the receipt of an additional signal corresponding to a change in the detected lid position. Further, a portable information handling system may include a lid, a base coupled to the lid and a sensor disposed on the lid or base, wherein the sensor detects a lid position. The system further includes a processor coupled to the sensor, wherein the processor generates a first signal corresponding to the lid position and the processor is operable to generate an additional signal corresponding to a change in the lid position.

Methods for reducing the receipt of multiple signals in a portable information handling system

A power consumption manager reduces inadvertent information handling system shutdowns by monitoring current discharge from a battery and commanding selected components of the information handling system to operate in a reduced power mode if current discharge exceeds a warning threshold. The power consumption manager recovers the selected components from the reduced power mode if the current discharge from the battery remains less than a recovery threshold. Monitoring of current discharge reduces inadvertent shutdowns from temporary surges in power demand from the battery and allows implementation of a reduced power configuration for the information handling system as total power discharge capacity of the battery drops with total charge available due to use of the battery over time.

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Austin, TX, United States of America

Loren Fredlund