Reading DPCD register data from remotely connected DP1.2 display
I am using below reference code in the CUI Doc v0.96 to read DPCD register data from a DP-VGA dongle which is connected to the downstream port of DP MST Hub (PC -> DP MST Hub -> DP-VGA dongle -> VGA monitor).
I could see DP MST Hub reading 5 bytes DPCD register data from DP-VGA dongle at DPCD register address 0x500 by using DP AUX analyzer and received hr = OK from API call, however the reading back DPCD register data is not stored in the data buffer (InData.Data). InData.Data -  has all "0" data.
Any comment to solve the issue would be very appreciated.