how to use nvapi to set aux channel control?

I want to know are there any nvapi to set/get displayport device by aux channel?

the interface _NvAPI_Disp_DpAuxChannelControl have no define.

Any one can help me?

NvAPI_Disp_DpAuxChannelControl, where is the function declare and which release sdk version include this?

Hi, Sir,
I tried to use NvAPI_Disp_DpAuxChannelControl to call the DPCD,
however, it needs NV_DPCD_PARAMS_VER3 struct and I don’t know the meaning of auxAddress.hopCount/auxAddress.hop/tilePosition.
Does anyone know how to set the parameters? (if the address is 0x700)