1 files changed, 16 insertions, 3 deletions

diff --git a/sound/usb/usbaudio.h b/sound/usb/usbaudio.h
index 9d8cea48fc5f..4f482939e8e8 100644
--- a/sound/usb/usbaudio.h
+++ b/sound/usb/usbaudio.h
@@ -36,8 +36,17 @@
 #define MIXER_UNIT                      0x04
 #define SELECTOR_UNIT                   0x05
 #define FEATURE_UNIT                    0x06
-#define PROCESSING_UNIT                 0x07
-#define EXTENSION_UNIT                  0x08
+#define PROCESSING_UNIT_V1              0x07
+#define EXTENSION_UNIT_V1               0x08
+
+/* audio class v2 */
+#define EFFECT_UNIT                     0x07
+#define PROCESSING_UNIT_V2              0x08
+#define EXTENSION_UNIT_V2               0x09
+#define CLOCK_SOURCE                    0x0a
+#define CLOCK_SELECTOR                  0x0b
+#define CLOCK_MULTIPLIER                0x0c
+#define SAMPLE_RATE_CONVERTER           0x0d
 
 #define AS_GENERAL                      0x01
 #define FORMAT_TYPE                     0x02
@@ -60,7 +69,7 @@
 #define EP_CS_ATTR_PITCH_CONTROL        0x02
 #define EP_CS_ATTR_FILL_MAX             0x80
 
-/* Audio Class specific Request Codes */
+/* Audio Class specific Request Codes (v1) */
 
 #define SET_CUR    0x01
 #define GET_CUR    0x81
@@ -74,6 +83,10 @@
 #define GET_MEM    0x85
 #define GET_STAT   0xff
 
+/* Audio Class specific Request Codes (v2) */
+#define CS_CUR     0x01
+#define CS_RANGE   0x02
+
 /* Terminal Control Selectors */
 
 #define COPY_PROTECT_CONTROL       0x01