USBRESMG.SYS and USBCALLS.DLL Version info:
USBCALLS Major Version:11
USBCALLS Minor Version:17
USBRESMG Major Version:11
USBRESMG Minor Version:17

Reporting info for device with idVendor 20b1 and idProduct 300f
Chosen configuration:1
Interface association:
   baInterfaceNr:0
   baInterfaceNr:1
Class Specific AudioControl Interface Header Descriptor Info:
   bLength:9
   bDescriptorType:36
   bDescriptorSubType:1
   bcdADC:0x200
   bCategory:8
   wTotalLength:72
   bmControls (bits):0000
Class Specific AudioContol Interface Clock Source Descriptor Info: