.ConfigurationNumber      = 1,
                        .ConfigurationStrIndex    = NO_DESCRIPTOR,
 
-                       .ConfigAttributes         = (USB_CONFIG_ATTR_BUSPOWERED | USB_CONFIG_ATTR_SELFPOWERED),
+                       .ConfigAttributes         = (USB_CONFIG_ATTR_RESERVED | USB_CONFIG_ATTR_SELFPOWERED),
 
                        .MaxPowerConsumption      = USB_CONFIG_POWER_MA(100)
                },
 
                        .TotalDiscreteSampleRates = (sizeof(ConfigurationDescriptor.Audio_AudioFormatSampleRates) / sizeof(USB_Audio_SampleFreq_t)),
                },
-       
+
        .Audio_AudioFormatSampleRates =
                {
                        AUDIO_SAMPLE_FREQ(8000),