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Date:   Mon, 17 Feb 2020 15:22:38 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Takashi Iwai <tiwai@...e.de>
Cc:     alsa-devel@...a-project.org, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] usb: audio-v2: Add uac2_effect_unit_descriptor
 definition

On Mon, Feb 17, 2020 at 03:18:34PM +0100, Takashi Iwai wrote:
> On Thu, 13 Feb 2020 12:20:58 +0100,
> Takashi Iwai wrote:
> > 
> > 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@...e.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 {
> 
> Greg, I suppose you are OK with this addition?
> 
> 

Yes, that's fine with me:

Acked-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

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