1009 type C 与DP检测，USB3.0与PD协议

https://www.anandtech.com/show/8558/displayport-alternate-mode-for-usb-typec-announced https://blog.csdn.net/qianxuedegushi/article/details/73223641 http://www.javashuo.com/article/p-fktnawbt-ku.html

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