Commit e9df1755 authored by noble.yang's avatar noble.yang Committed by Takashi Iwai
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ALSA: usb-audio: Add DSD support for Comtrue USB Audio device 



The vendor Comtrue Inc. (0x2fc6) produces USB audio chipsets like
the CT7601 which are capable of Native DSD playback.

This patch adds QUIRK_FLAG_DSD_RAW for Comtrue (VID 0x2fc6), which enables
native DSD playback (DSD_U32_LE) on their USB Audio device. This has been
verified under Ubuntu 25.04 with JRiver.

Signed-off-by: default avatarnoble.yang <noble.yang@comtrue-inc.com>
Link: https://patch.msgid.link/20250731110614.4070-1-noble228@gmail.com


Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 81231ad1

sound/usb/quirks.c

+2 −0
Original line number Diff line number Diff line
@@ -2408,6 +2408,8 @@ static const struct usb_audio_quirk_flags_table quirk_flags_table[] = { 
		   QUIRK_FLAG_DSD_RAW),

	VENDOR_FLG(0x2d87, /* Cayin device */

		   QUIRK_FLAG_DSD_RAW),

	VENDOR_FLG(0x2fc6, /* Comture-inc devices */

		   QUIRK_FLAG_DSD_RAW),

	VENDOR_FLG(0x3336, /* HEM devices */

		   QUIRK_FLAG_DSD_RAW),

	VENDOR_FLG(0x3353, /* Khadas devices */