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Diffstat (limited to 'include/linux/usb/audio-v2.h')
-rw-r--r--include/linux/usb/audio-v2.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/usb/audio-v2.h b/include/linux/usb/audio-v2.h
index 0952231e6c3..2389f93a28b 100644
--- a/include/linux/usb/audio-v2.h
+++ b/include/linux/usb/audio-v2.h
@@ -105,6 +105,17 @@ struct uac_as_header_descriptor_v2 {
__u8 iChannelNames;
} __attribute__((packed));
+/* 6.1 Interrupt Data Message */
+
+#define UAC2_INTERRUPT_DATA_MSG_VENDOR (1 << 0)
+#define UAC2_INTERRUPT_DATA_MSG_EP (1 << 1)
+
+struct uac2_interrupt_data_msg {
+ __u8 bInfo;
+ __u8 bAttribute;
+ __le16 wValue;
+ __le16 wIndex;
+} __attribute__((packed));
/* A.7 Audio Function Category Codes */
#define UAC2_FUNCTION_SUBCLASS_UNDEFINED 0x00
@@ -153,6 +164,7 @@ struct uac_as_header_descriptor_v2 {
/* A.14 Audio Class-Specific Request Codes */
#define UAC2_CS_CUR 0x01
#define UAC2_CS_RANGE 0x02
+#define UAC2_CS_MEM 0x03
/* A.15 Encoder Type Codes */
#define UAC2_ENCODER_UNDEFINED 0x00