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Subject[PATCH 1/2] usb: audio-v2: Add uac2_effect_unit_descriptor definition
Date
The UAC2 Effect Unit Descriptor has a slightly different definition
from other similar ones like Processing Unit or Extension Unit.
Define it here so that it can be used in USB-audio driver in a later
patch.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
include/linux/usb/audio-v2.h | 12 ++++++++++++
1 file changed, 12 insertions(+)

diff --git a/include/linux/usb/audio-v2.h b/include/linux/usb/audio-v2.h
index ba4b3e3327ff..cb9900b34b67 100644
--- a/include/linux/usb/audio-v2.h
+++ b/include/linux/usb/audio-v2.h
@@ -156,6 +156,18 @@ struct uac2_feature_unit_descriptor {
__u8 bmaControls[0]; /* variable length */
} __attribute__((packed));

+/* 4.7.2.10 Effect Unit Descriptor */
+
+struct uac2_effect_unit_descriptor {
+ __u8 bLength;
+ __u8 bDescriptorType;
+ __u8 bDescriptorSubtype;
+ __u8 bUnitID;
+ __le16 wEffectType;
+ __u8 bSourceID;
+ __u8 bmaControls[]; /* variable length */
+} __attribute__((packed));
+
/* 4.9.2 Class-Specific AS Interface Descriptor */

struct uac2_as_header_descriptor {
--
2.16.4
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