fx3 uac2.0 descriptor

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wyw
Level 3
Level 3
25 replies posted 25 sign-ins 10 replies posted

I use uac2.0 in FX3,download firmware to board,my PC(windows10 20H2) device manager dispaly audio device of FX3,but corresponding driver was not installed successfully.

Attachments are partial descriptors for uac2.0,Please check it for me.

 

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JayakrishnaT_76
Moderator
Moderator
Moderator
First question asked 1000 replies posted 750 replies posted

Hello,

Apologies for the delayed response. 

Also, I apologize for making a mistake in my previous response. For UAC 2.0, Audio In Class-Specific AS Type I Format Descriptor should be same as the one in the project that you shared.

We have developed a project to enumerate FX3 device as a UAC 2.0 device. Please note that this project is not a fully functional project. This example project just makes the device enumerate as a UAC 2.0 device.

There are some modifications in the descriptors (specifically in the clock source descriptors). Also, class specific requests (sampling frequency control) needs to be handled. We have added all these in the project attached along with this response. Please refer to the UAC 2.0 specification to understand more on the requests.

Please use this project as a reference for enumerating the device as a UAC 2.0 device. You can develop your end application by adding functionalities on top of this project.

Best Regards,
Jayakrishna

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