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AMD Publishes New HDA GPU Documentation

AMD

Published on 01 October 2013 12:31 PM EDT
Written by Michael Larabel in AMD
6 Comments

A few weeks ago AMD began releasing technical documentation on the HDA audio portion of their Radeon GPUs. Yesterday AMD published the second version of their HDA programming documentation.

Version 2 of the AMD HDA Verbs documentation adds in information covering HBR compressed audio pass-through and audio/video delay verbs (lipsync). This updated HDA documentation adds in eight more pages to the original ten page document.

The HBR compressed audio pass-through documentation notes, "The HBR Control allows for the transmission of compressed audio using the maximum audio channels in the HDMI/DP link (eight) instead of the regular two channels used for compressed audio."

The updated AMD HDA audio GPU documentation can be found in this PDF file.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
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