[alsa-devel] [PATCH] ALSA: usb-audio: add implicit fb quirk for Axe-Fx II

[Takashi Iwai]

On Thu, 08 Dec 2016 07:36:48 +0100,
Alberto Aguirre wrote:
> 
> The Axe-Fx II implicit feedback end point and the data sync endpoint
> are in different interface descriptors. Add quirk to ensure a sync
> endpoint is properly configured.
> 
> Signed-off-by: Alberto Aguirre <albaguirre at gmail.com>

Applied, thanks.


Takashi


> ---
>  sound/usb/pcm.c | 10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
> index 44d178e..0fe2d56 100644
> --- a/sound/usb/pcm.c
> +++ b/sound/usb/pcm.c
> @@ -348,6 +348,16 @@ static int set_sync_ep_implicit_fb_quirk(struct snd_usb_substream *subs,
>  
>  		alts = &iface->altsetting[1];
>  		goto add_sync_ep;
> +	case USB_ID(0x2466, 0x8003):
> +		ep = 0x86;
> +		iface = usb_ifnum_to_if(dev, 2);
> +
> +		if (!iface || iface->num_altsetting == 0)
> +			return -EINVAL;
> +
> +		alts = &iface->altsetting[1];
> +		goto add_sync_ep;
> +
>  	}
>  	if (attr == USB_ENDPOINT_SYNC_ASYNC &&
>  	    altsd->bInterfaceClass == USB_CLASS_VENDOR_SPEC &&
> -- 
> 2.9.3
> 
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