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您好，您的这个问题在e2e 上已经有工程师给您回复: The following is some of the information which can be obtained from or provided to the downstream eDP device using AUX WDATA and RDATA: 1. eDP Downstream DPCD capabilities (number of lanes, datarate, display authenticate method, and so on) 2. EDID information of display like native resolution (obtained by I2C over AUX transactions) 3. Link training and status 4. MCCS control
Please refer to DP and eDP spec for detailed info on these type of data.
