[alsa-devel] [PATCH] ALSA: usb-audio: Disable quirks for BOSS Katana amplifiers

[Takashi Iwai]

On Fri, 11 Oct 2019 19:19:36 +0200,
Szabolcs Szőke wrote:
> 
> BOSS Katana amplifiers cannot be used for recording or playback if quirks
> are applied
> 
> BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=195223
> Signed-off-by: Szabolcs Szőke <szszoke.code at gmail.com>

Applied now.  Thanks.


Takashi

> 
> ---
>  sound/usb/pcm.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
> index 33cd26763c0e..daadb0c66eee 100644
> --- a/sound/usb/pcm.c
> +++ b/sound/usb/pcm.c
> @@ -348,6 +348,9 @@ static int set_sync_ep_implicit_fb_quirk(struct snd_usb_substream *subs,
>  		ep = 0x84;
>  		ifnum = 0;
>  		goto add_sync_ep_from_ifnum;
> +	case USB_ID(0x0582, 0x01d8): /* BOSS Katana */
> +		/* BOSS Katana amplifiers do not need quirks */
> +		return 0;
>  	}
>  
>  	if (attr == USB_ENDPOINT_SYNC_ASYNC &&
> -- 
> 2.20.1
>