Device support request: USBStreamer

[unclechu]

I wanted to try the tool to configure my USBStreamer. But it turns out it’s not supported by minidsp-rs? An attempt to call it fails with: “Error: No devices found”.

[mrene]

Hi

It seems like USBStreamer is pretty different than the other types of devices supported in this tool (which configure filters, gain structure, etc for DSP devices)

I would accept a PR if someone is willing to implement it, but without a device it's pretty hard to do on its own.