SOtM sMS-200 and MiniDSP U-DIO8

Hi everyone.

I’ve got a sMS-200 and a MiniDSP U-DIO8 usb interface connected to two stereo dacs via their s/pdif interfaces, forming a 4.0 multichannel system. However, the MPD daemon running on sMS-200 shows the U-DIO8 as a stereo device instead of an eight-channel device. It is strange because when using it as a Roon endpoint the Roon server display it correctly.

Does anybody out there has a solution for this?

Thanks in advance.