Add missing but needed ACHeader and FormatType descriptor definitions.
Signed-off-by: Yadi Brar <yadi.brar01@xxxxxxxxx>
Signed-off-by: Jassi Brar <jaswinder.singh@xxxxxxxxxx>
---
include/linux/usb/audio-v2.h | 21 +++++++++++++++++++++
1 files changed, 21 insertions(+), 0 deletions(-)
diff --git a/include/linux/usb/audio-v2.h b/include/linux/usb/audio-v2.h
index 964cb60..ed13053 100644
--- a/include/linux/usb/audio-v2.h
+++ b/include/linux/usb/audio-v2.h
@@ -43,6 +43,27 @@ static inline bool uac2_control_is_writeable(u32 bmControls, u8 control)
return (bmControls >> (control * 2)) & 0x2;
}
+/* 4.7.2 Class-Specific AC Interface Descriptor */
+struct uac2_ac_header_descriptor {
+ __u8 bLength; /* 9 */
+ __u8 bDescriptorType; /* USB_DT_CS_INTERFACE */
+ __u8 bDescriptorSubtype; /* UAC_MS_HEADER */
+ __le16 bcdADC; /* 0x0200 */
+ __u8 bCategory;
+ __le16 wTotalLength; /* includes Unit and Terminal desc. */
+ __u8 bmControls;
+} __packed;
+
+/* 2.3.1.6 Type I Format Type Descriptor (Frmts20 final.pdf)*/
+struct uac2_format_type_i_descriptor {
+ __u8 bLength; /* in bytes: 6 */
+ __u8 bDescriptorType; /* USB_DT_CS_INTERFACE */
+ __u8 bDescriptorSubtype; /* FORMAT_TYPE */
+ __u8 bFormatType; /* FORMAT_TYPE_1 */
+ __u8 bSubslotSize; /* {1,2,3,4} */
+ __u8 bBitResolution;
+} __packed;
+
/* 4.7.2.1 Clock Source Descriptor */
struct uac_clock_source_descriptor {
--
1.7.4.1
--
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