DisplayPort Intel® FPGA IP User Guide

ID 683273
Date 10/20/2022
Public

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9.52. btc_dptx_mst_enum_path_req

Prototype:

int btc_dptx_mst_enum_path_req(
BYTE tx_idx,
BTC_RAD *RAD,  
BYTE port_number)

Thread-safe:

No

Available from ISR:

No

Include:

< btc_dptx_syslib.h >

Return:

0 = ACK, 1 = NACK, 2 = Not ready

Parameters:

  • tx_idx—Source instance index (0 - 3)
  • RAD—MST Relatives Address of the Destination
  • port_number—Downstream device output port number

Description:

This function issues a ENUM_PATH_RESOURCES DOWN_REQ MST sideband message.

Example:

btc_dptx_mst_enum_path_req(0, aRAD,9);