This is a note to let you know that I've just added the patch titled ALSA: usb-audio: Add DSD support for Accuphase DAC-60 to the 4.19-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-dsd-support-for-accuphase-dac-60.patch and it can be found in the queue-4.19 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 8cbd4725ffff3eface1f5f3397af02acad5b2831 Mon Sep 17 00:00:00 2001 From: Jussi Laako <jussi@xxxxxxxxxxxxx> Date: Wed, 9 Nov 2022 00:12:41 +0200 Subject: ALSA: usb-audio: Add DSD support for Accuphase DAC-60 From: Jussi Laako <jussi@xxxxxxxxxxxxx> commit 8cbd4725ffff3eface1f5f3397af02acad5b2831 upstream. Accuphase DAC-60 option card supports native DSD up to DSD256, but doesn't have support for auto-detection. Explicitly enable DSD support for the correct altsetting. Signed-off-by: Jussi Laako <jussi@xxxxxxxxxxxxx> Cc: <stable@xxxxxxxxxxxxxxx> Link: https://lore.kernel.org/r/20221108221241.1220878-1-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 @@ -1410,6 +1410,7 @@ u64 snd_usb_interface_dsd_format_quirks( /* XMOS based USB DACs */ switch (chip->usb_id) { case USB_ID(0x1511, 0x0037): /* AURALiC VEGA */ + case USB_ID(0x21ed, 0xd75a): /* Accuphase DAC-60 option card */ case USB_ID(0x2522, 0x0012): /* LH Labs VI DAC Infinity */ case USB_ID(0x2772, 0x0230): /* Pro-Ject Pre Box S2 Digital */ if (fp->altsetting == 2) Patches currently in stable-queue which might be from jussi@xxxxxxxxxxxxx are queue-4.19/alsa-usb-audio-add-dsd-support-for-accuphase-dac-60.patch