Abstract
The host uses USB-C power source from USB-C port on notebook or AIO now. The
USB-C power source detection fail happens sometimes. The power status is incorrect
and keep DC when the failure happens. The USB-C power source detection fail may
cause by communication problem between PD, EC, chipset and OS. The
communication problems are maybe related about the hardware, firmware, driver and
OS. It is a complex process for USB-C power source detection. We provide a Sure
USB-C Power Source Detection (SUPSD). When the USB-C power source plug-in,
SUPSD can detect the power status from OS. It can recover the USB-C power source
detection problem and make sure the power status is correct in OS. It can improve the
user experience.
Creative Commons License
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Recommended Citation
INC, HP, "SURE USB-C POWER SOURCE DETECTION", Technical Disclosure Commons, (December 09, 2020)
https://www.tdcommons.org/dpubs_series/3863