Talk:Intel High Definition Audio: Difference between revisions
m Asking identification question - class code and subclass |
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I suggested using the Class code (4h) and subclass (3h) to identify HDA, but the specification doesn't spell that out as the correct method. If there is any case where that doesn't work, please edit these pages to say so. |
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May be worth mentioning this [Edit - have now done so]: alternative device ID = 27D8. NM10/ICH7 Family High Definition Audio Controller (found in Advent netbook). Uses same device and function numbers and appears to have identical HD audio functionality to the device ID 2668 version, judging by the datasheets.--[[User:Davidcooper|Davidcooper]] 13:46, 23 April 2013 (CDT) |
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Maybe a better way of identifying HDA is from the Class code (4h) and subclass (3h), but that doesn't appear to be official yet and I'm basing it on just two datasheets (and one real machine). |
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== Widget arrangement in codecs == |
== Widget arrangement in codecs == |
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To help work out the rules for connecting things up, it would be useful to have a better understanding of how variable different AFG codecs can be. My machine has a Realtek codec with Vendor ID 10ECh and Device ID 0662h, and that information led me to its datasheet and a map showing how its widgets are connected together. If anyone reading this can supply the Vendor ID and Device ID for the AFG codec in their machine, that'll help us all come up with better rules to follow so that our software will have more chance of working on any machine that supports Intel HD Audio.[[User:Davidcooper|Davidcooper]] 13:09, 11 November 2015 (CST) |
Latest revision as of 19:09, 11 November 2015
Identifying HDA
I suggested using the Class code (4h) and subclass (3h) to identify HDA, but the specification doesn't spell that out as the correct method. If there is any case where that doesn't work, please edit these pages to say so.
Widget arrangement in codecs
To help work out the rules for connecting things up, it would be useful to have a better understanding of how variable different AFG codecs can be. My machine has a Realtek codec with Vendor ID 10ECh and Device ID 0662h, and that information led me to its datasheet and a map showing how its widgets are connected together. If anyone reading this can supply the Vendor ID and Device ID for the AFG codec in their machine, that'll help us all come up with better rules to follow so that our software will have more chance of working on any machine that supports Intel HD Audio.Davidcooper 13:09, 11 November 2015 (CST)