Windows 10/11 USB Audio Class 2 32-bit Float Support

[Windows 10]

Hello,I'm developing a USB microphone using USB audio class 2 and am trying to get the IEEE 32-bit float format support working. I already have 16, and 24-bit PCM format working as alternate settings 1 and 2 and am adding a 3rd alternate setting for 32-bit float mode. Per the Windows USB Audio 2.0 drivers documentation page (USB Audio 2.0 Drivers - Windows drivers) the Type 1 IEEE_FLOAT Format (FMT-2 2.3.1.7.3) is supported but I can't seem to get Windows to accept it.I've created a 3rd alternate setting with the following as specified in the

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