From 10fa9512769fa3b15ea29f4f331f4604c17b4b2c Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 13 Feb 2020 12:20:58 +0100 Subject: [PATCH] usb: audio-v2: Add uac2_effect_unit_descriptor definition 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. Acked-by: Greg Kroah-Hartman Link: https://lore.kernel.org/r/20200213112059.18745-2-tiwai@suse.de Signed-off-by: Takashi Iwai --- 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 {