[PATCH 6.19 246/844] ALSA: usb-audio: Add DSD support for iBasso DC04U
From: Sasha Levin
Date: Sat Feb 28 2026 - 13:25:19 EST
From: Qihang Guo <v-conet@xxxxxxxxxxx>
[ Upstream commit fe7cd89f0e29f0852316857b4861309f9b891370 ]
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 <v-conet@xxxxxxxxxxx>
Link: https://patch.msgid.link/TYYPR01MB14098529E0BD900921BE6F42CF465A@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
sound/usb/quirks.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index 4f9d19bf1ccac..7fabaeb3781a2 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -2235,6 +2235,8 @@ 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) */
--
2.51.0