This is a note to let you know that I've just added the patch titled ALSA: usb-audio: Add native DSD support for Pro-Ject Pre Box S2 Digital to the 4.13-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: alsa-usb-audio-add-native-dsd-support-for-pro-ject-pre-box-s2-digital.patch and it can be found in the queue-4.13 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 9bb201a5d5acc733943e8af7151cceab9d976a69 Mon Sep 17 00:00:00 2001 From: Jussi Laako <jussi@xxxxxxxxxxxxx> Date: Sun, 15 Oct 2017 12:41:32 +0300 Subject: ALSA: usb-audio: Add native DSD support for Pro-Ject Pre Box S2 Digital From: Jussi Laako <jussi@xxxxxxxxxxxxx> commit 9bb201a5d5acc733943e8af7151cceab9d976a69 upstream. Add native DSD support quirk for Pro-Ject Pre Box S2 Digital USB id 2772:0230. Signed-off-by: Jussi Laako <jussi@xxxxxxxxxxxxx> Signed-off-by: Takashi Iwai <tiwai@xxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- sound/usb/quirks.c | 1 + 1 file changed, 1 insertion(+) --- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -1352,6 +1352,7 @@ u64 snd_usb_interface_dsd_format_quirks( case USB_ID(0x20b1, 0x2008): /* Matrix Audio X-Sabre */ case USB_ID(0x20b1, 0x300a): /* Matrix Audio Mini-i Pro */ case USB_ID(0x22d9, 0x0416): /* OPPO HA-1 */ + case USB_ID(0x2772, 0x0230): /* Pro-Ject Pre Box S2 Digital */ if (fp->altsetting == 2) return SNDRV_PCM_FMTBIT_DSD_U32_BE; break; Patches currently in stable-queue which might be from jussi@xxxxxxxxxxxxx are queue-4.13/alsa-usb-audio-add-native-dsd-support-for-pro-ject-pre-box-s2-digital.patch