.Header                   = {.Size = sizeof(USB_Audio_Descriptor_StreamEndpoint_Spc_t), .Type = DTYPE_CSEndpoint},
                        .Subtype                  = AUDIO_DSUBTYPE_CSEndpoint_General,
 
-                       .Attributes               = AUDIO_EP_ACCEPTS_SMALL_PACKETS,
+                       .Attributes               = (AUDIO_EP_ACCEPTS_SMALL_PACKETS | AUDIO_EP_SAMPLE_FREQ_CONTROL),
 
                        .LockDelayUnits           = 0x00,
                        .LockDelay                = 0x0000