Apparatus and method for awakening a primary processor out of sleep mode
One disclosed method includes communicating with a kernel running on a primary processor, by a second processor, in response to detection of a state change; performing a hardware operation, in response to the state change, using the kernel without waking user space on the primary processor, where th...
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Main Authors | , , , , , |
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Format | Patent |
Language | English |
Published |
24.10.2017
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Subjects | |
Online Access | Get full text |
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Summary: | One disclosed method includes communicating with a kernel running on a primary processor, by a second processor, in response to detection of a state change; performing a hardware operation, in response to the state change, using the kernel without waking user space on the primary processor, where the user space remains suspended; and resuming a sleep mode of the primary processor by suspending the kernel after the hardware operation is completed. One example of a hardware operation is modification of display data on a touchscreen display. The method of operation may perform the hardware operation using the kernel without waking hardware drivers other than a hardware driver related to the hardware operation. |
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Bibliography: | Application Number: US201414339861 |