From fe7cd89f0e29f0852316857b4861309f9b891370 Mon Sep 17 00:00:00 2001 From: Qihang Guo Date: Mon, 9 Feb 2026 18:04:18 +0800 Subject: [PATCH] ALSA: usb-audio: Add DSD support for iBasso DC04U Vendor ID 0x0661 is assigned to Hamamatsu Photonics K.K., but is used by iBasso for iBasso DC04U (0x0661:0x0883), which supports native DSD playback. This patch adds QUIRK_FLAG_DSD_RAW for iBasso DC04U, enabling native DSD playback (DSD_U32_BE). The change has been verified on Arch Linux using mpd and pw-cat. Signed-off-by: Qihang Guo Link: https://patch.msgid.link/TYYPR01MB14098529E0BD900921BE6F42CF465A@TYYPR01MB14098.jpnprd01.prod.outlook.com Signed-off-by: Takashi Iwai --- sound/usb/quirks.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c index e3f737f183869..86c329632e396 100644 --- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -2237,6 +2237,8 @@ static const struct usb_audio_quirk_flags_table quirk_flags_table[] = { DEVICE_FLG(0x0644, 0x806c, /* Esoteric XD */ QUIRK_FLAG_ITF_USB_DSD_DAC | QUIRK_FLAG_CTL_MSG_DELAY | QUIRK_FLAG_IFACE_DELAY | QUIRK_FLAG_FORCE_IFACE_RESET), + DEVICE_FLG(0x0661, 0x0883, /* iBasso DC04 Ultra */ + QUIRK_FLAG_DSD_RAW), DEVICE_FLG(0x06f8, 0xb000, /* Hercules DJ Console (Windows Edition) */ QUIRK_FLAG_IGNORE_CTL_ERROR), DEVICE_FLG(0x06f8, 0xd002, /* Hercules DJ Console (Macintosh Edition) */ -- 2.47.3