diff --git a/include/uapi/sound/firewire.h b/include/uapi/sound/firewire.h
index 68eb0e43c052..39cf6eb75940 100644
--- a/include/uapi/sound/firewire.h
+++ b/include/uapi/sound/firewire.h
@@ -248,12 +248,14 @@ struct snd_firewire_motu_register_dsp_parameter {
  *
  * The structure expresses the part of DSP status for hardware meter. The 32 bit storage is
  * estimated to include IEEE 764 32 bit single precision floating point (binary32) value. It is
- * expected to be linear value (not logarithm) for audio signal level between 0.0 and +1.0. However,
- * the last two quadlets (data[398] and data[399]) are filled with 0xffffffff since they are the
- * marker of one period.
+ * expected to be linear value (not logarithm) for audio signal level between 0.0 and +1.0.
  */
 struct snd_firewire_motu_command_dsp_meter {
+#ifdef __KERNEL__
 	__u32 data[SNDRV_FIREWIRE_MOTU_COMMAND_DSP_METER_COUNT];
+#else
+	float data[SNDRV_FIREWIRE_MOTU_COMMAND_DSP_METER_COUNT];
+#endif
 };
 
 #endif /* _UAPI_SOUND_FIREWIRE_H_INCLUDED */
diff --git a/sound/firewire/motu/motu-command-dsp-message-parser.c b/sound/firewire/motu/motu-command-dsp-message-parser.c
index 18689fcfb288..9efe4d364baf 100644
--- a/sound/firewire/motu/motu-command-dsp-message-parser.c
+++ b/sound/firewire/motu/motu-command-dsp-message-parser.c
@@ -141,12 +141,15 @@ void snd_motu_command_dsp_message_parser_parse(struct snd_motu *motu, const stru
 					++parser->fragment_pos;
 
 					if (parser->fragment_pos == 4) {
+						// Skip the last two quadlets since they could be
+						// invalid value (0xffffffff) as floating point
+						// number.
 						if (parser->value_index <
-						    SNDRV_FIREWIRE_MOTU_COMMAND_DSP_METER_COUNT) {
+						    SNDRV_FIREWIRE_MOTU_COMMAND_DSP_METER_COUNT - 2) {
 							u32 val = (u32)(parser->value >> 32);
 							parser->meter.data[parser->value_index] = val;
-							++parser->value_index;
 						}
+						++parser->value_index;
 						parser->fragment_pos = 0;
 					}