sound/usb/quirks.c | 2 ++ 1 file changed, 2 insertions(+)
Hello Takashi
Please try download it as below link
https://reurl.cc/8951Ro
Thanks
Noble
-----Original Message-----
From: Takashi Iwai <tiwai@suse.de>
Sent: Thursday, July 31, 2025 1:40 PM
To: noble.yang@comtrue-inc.com
Cc: tiwai@suse.com; perex@perex.cz; hulianqin@vivo.com;
lina+kernel@asahilina.net; cyan.vtb@gmail.com; dan.carpenter@linaro.org;
bsevens@google.com; linux-sound@vger.kernel.org;
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] ALSA: usb-audio: Add DSD support for Comtrue USB Audio
device
On Thu, 31 Jul 2025 06:51:37 +0200,
<noble.yang@comtrue-inc.com> wrote:
>
>
> 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.
>
> Best Regards !
I see no patch in the mail. Could you try to send via git-send-email?
thanks,
Takashi
>
> ===========================
>
> Noble Yang
>
> Cell : +886-955-347822
>
> 晨臻股份有限公司
>
> Comtrue Inc.
>
> www.comtrue-inc.com
>
> 新地址 : 新竹縣竹北市縣政十街10號2F之1
>
> 2F.-1, No. 10, Xianzheng 10th St., Zhubei City, Hsinchu County 302,
> Taiwan
> (R.O.C.)
>
> The information included in this email is privileged and confidential
> and just for the exclusive use of the addressee.
>
> For people other than the addressee the use, disclosure and
> reproduction is strictly prohibited.
>
> If this message has been received in error, please contact the sender
> and delete all copies.
>
>
> cat /proc/asound/card*/stream0
> Comtrue-inc Comtrue-inc UAC2 Device EVM-GB at usb-0000:00:14.0-5, high
> speed : USB Audio
>
> Playback:
> Status: Stop
> Interface 1
> Altset 1
> Format: S16_LE
> Channels: 2
> Endpoint: 0x01 (1 OUT) (ASYNC)
> Rates: 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000,
705600, 768000
> Data packet interval: 125 us
> Bits: 16
> Channel map: FL FR
> Sync Endpoint: 0x81 (1 IN)
> Sync EP Interface: 1
> Sync EP Altset: 1
> Implicit Feedback Mode: No
> Interface 1
> Altset 2
> Format: S24_3LE
> Channels: 2
> Endpoint: 0x01 (1 OUT) (ASYNC)
> Rates: 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000,
705600, 768000
> Data packet interval: 125 us
> Bits: 24
> Channel map: FL FR
> Sync Endpoint: 0x81 (1 IN)
> Sync EP Interface: 1
> Sync EP Altset: 2
> Implicit Feedback Mode: No
> Interface 1
> Altset 3
> Format: S32_LE
> Channels: 2
> Endpoint: 0x01 (1 OUT) (ASYNC)
> Rates: 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000,
705600, 768000
> Data packet interval: 125 us
> Bits: 32
> Channel map: FL FR
> Sync Endpoint: 0x81 (1 IN)
> Sync EP Interface: 1
> Sync EP Altset: 3
> Implicit Feedback Mode: No
> Interface 1
> Altset 4
> Format: SPECIAL DSD_U32_BE
> Channels: 2
> Endpoint: 0x01 (1 OUT) (ASYNC)
> Rates: 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000,
705600, 768000
> Data packet interval: 125 us
> Bits: 32
> DSD raw: DOP=0, bitrev=0
> Channel map: FL FR
> Sync Endpoint: 0x81 (1 IN)
> Sync EP Interface: 1
> Sync EP Altset: 4
> Implicit Feedback Mode: No
>
> Capture:
> Status: Stop
> Interface 2
> Altset 1
> Format: S16_LE
> Channels: 2
> Endpoint: 0x82 (2 IN) (ASYNC)
> Rates: 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000,
705600, 768000
> Data packet interval: 125 us
> Bits: 16
> Channel map: FL FR
> Interface 2
> Altset 2
> Format: S24_3LE
> Channels: 2
> Endpoint: 0x82 (2 IN) (ASYNC)
> Rates: 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000,
705600, 768000
> Data packet interval: 125 us
> Bits: 24
> Channel map: FL FR
> Interface 2
> Altset 3
> Format: S32_LE
> Channels: 2
> Endpoint: 0x82 (2 IN) (ASYNC)
> Rates: 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000,
705600, 768000
> Data packet interval: 125 us
> Bits: 32
> Channel map: FL FR
> Interface 2
> Altset 4
> Format: SPECIAL DSD_U32_BE
> Channels: 2
> Endpoint: 0x82 (2 IN) (ASYNC)
> Rates: 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000,
705600, 768000
> Data packet interval: 125 us
> Bits: 32
> DSD raw: DOP=0, bitrev=0
> Channel map: FL FR
>
From 1b9dde1ef9987efcaf5d9bc9a932ac0ec3bbd8c5 Mon Sep 17 00:00:00 2001
From: "noble.yang" <noble.yang@comtrue-inc.com>
Date: Thu, 31 Jul 2025 12:11:11 +0800
Subject: [PATCH] ALSA: usb-audio: Add DSD support for Comtrue USB Audio device
Signed-off-by: noble.yang <noble.yang@comtrue-inc.com>
---
sound/usb/quirks.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index bd24f3a78ea9..cbb66125f839 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -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 */
--
2.48.1
cat /proc/asound/card*/stream0
Comtrue-inc Comtrue-inc UAC2 Device EVM-GB at usb-0000:00:14.0-5, high speed : USB Audio
Playback:
Status: Stop
Interface 1
Altset 1
Format: S16_LE
Channels: 2
Endpoint: 0x01 (1 OUT) (ASYNC)
Rates: 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000, 705600, 768000
Data packet interval: 125 us
Bits: 16
Channel map: FL FR
Sync Endpoint: 0x81 (1 IN)
Sync EP Interface: 1
Sync EP Altset: 1
Implicit Feedback Mode: No
Interface 1
Altset 2
Format: S24_3LE
Channels: 2
Endpoint: 0x01 (1 OUT) (ASYNC)
Rates: 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000, 705600, 768000
Data packet interval: 125 us
Bits: 24
Channel map: FL FR
Sync Endpoint: 0x81 (1 IN)
Sync EP Interface: 1
Sync EP Altset: 2
Implicit Feedback Mode: No
Interface 1
Altset 3
Format: S32_LE
Channels: 2
Endpoint: 0x01 (1 OUT) (ASYNC)
Rates: 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000, 705600, 768000
Data packet interval: 125 us
Bits: 32
Channel map: FL FR
Sync Endpoint: 0x81 (1 IN)
Sync EP Interface: 1
Sync EP Altset: 3
Implicit Feedback Mode: No
Interface 1
Altset 4
Format: SPECIAL DSD_U32_BE
Channels: 2
Endpoint: 0x01 (1 OUT) (ASYNC)
Rates: 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000, 705600, 768000
Data packet interval: 125 us
Bits: 32
DSD raw: DOP=0, bitrev=0
Channel map: FL FR
Sync Endpoint: 0x81 (1 IN)
Sync EP Interface: 1
Sync EP Altset: 4
Implicit Feedback Mode: No
Capture:
Status: Stop
Interface 2
Altset 1
Format: S16_LE
Channels: 2
Endpoint: 0x82 (2 IN) (ASYNC)
Rates: 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000, 705600, 768000
Data packet interval: 125 us
Bits: 16
Channel map: FL FR
Interface 2
Altset 2
Format: S24_3LE
Channels: 2
Endpoint: 0x82 (2 IN) (ASYNC)
Rates: 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000, 705600, 768000
Data packet interval: 125 us
Bits: 24
Channel map: FL FR
Interface 2
Altset 3
Format: S32_LE
Channels: 2
Endpoint: 0x82 (2 IN) (ASYNC)
Rates: 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000, 705600, 768000
Data packet interval: 125 us
Bits: 32
Channel map: FL FR
Interface 2
Altset 4
Format: SPECIAL DSD_U32_BE
Channels: 2
Endpoint: 0x82 (2 IN) (ASYNC)
Rates: 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000, 705600, 768000
Data packet interval: 125 us
Bits: 32
DSD raw: DOP=0, bitrev=0
Channel map: FL FR
On Thu, 31 Jul 2025 07:50:13 +0200, <noble.yang@comtrue-inc.com> wrote: > > Hello Takashi > > Please try download it as below link > https://reurl.cc/8951Ro You can't submit like this style. Please try to submit in the proper format embedded in the email. thanks, Takashi > > Thanks > Noble > > -----Original Message----- > From: Takashi Iwai <tiwai@suse.de> > Sent: Thursday, July 31, 2025 1:40 PM > To: noble.yang@comtrue-inc.com > Cc: tiwai@suse.com; perex@perex.cz; hulianqin@vivo.com; > lina+kernel@asahilina.net; cyan.vtb@gmail.com; dan.carpenter@linaro.org; > bsevens@google.com; linux-sound@vger.kernel.org; > linux-kernel@vger.kernel.org > Subject: Re: [PATCH] ALSA: usb-audio: Add DSD support for Comtrue USB Audio > device > > On Thu, 31 Jul 2025 06:51:37 +0200, > <noble.yang@comtrue-inc.com> wrote: > > > > > > 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. > > > > Best Regards ! > > I see no patch in the mail. Could you try to send via git-send-email? > > > thanks, > > Takashi > > > > > =========================== > > > > Noble Yang > > > > Cell : +886-955-347822 > > > > 晨臻股份有限公司 > > > > Comtrue Inc. > > > > www.comtrue-inc.com > > > > 新地址 : 新竹縣竹北市縣政十街10號2F之1 > > > > 2F.-1, No. 10, Xianzheng 10th St., Zhubei City, Hsinchu County 302, > > Taiwan > > (R.O.C.) > > > > The information included in this email is privileged and confidential > > and just for the exclusive use of the addressee. > > > > For people other than the addressee the use, disclosure and > > reproduction is strictly prohibited. > > > > If this message has been received in error, please contact the sender > > and delete all copies. > > > > > > cat /proc/asound/card*/stream0 > > Comtrue-inc Comtrue-inc UAC2 Device EVM-GB at usb-0000:00:14.0-5, high > > speed : USB Audio > > > > Playback: > > Status: Stop > > Interface 1 > > Altset 1 > > Format: S16_LE > > Channels: 2 > > Endpoint: 0x01 (1 OUT) (ASYNC) > > Rates: 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000, > 705600, 768000 > > Data packet interval: 125 us > > Bits: 16 > > Channel map: FL FR > > Sync Endpoint: 0x81 (1 IN) > > Sync EP Interface: 1 > > Sync EP Altset: 1 > > Implicit Feedback Mode: No > > Interface 1 > > Altset 2 > > Format: S24_3LE > > Channels: 2 > > Endpoint: 0x01 (1 OUT) (ASYNC) > > Rates: 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000, > 705600, 768000 > > Data packet interval: 125 us > > Bits: 24 > > Channel map: FL FR > > Sync Endpoint: 0x81 (1 IN) > > Sync EP Interface: 1 > > Sync EP Altset: 2 > > Implicit Feedback Mode: No > > Interface 1 > > Altset 3 > > Format: S32_LE > > Channels: 2 > > Endpoint: 0x01 (1 OUT) (ASYNC) > > Rates: 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000, > 705600, 768000 > > Data packet interval: 125 us > > Bits: 32 > > Channel map: FL FR > > Sync Endpoint: 0x81 (1 IN) > > Sync EP Interface: 1 > > Sync EP Altset: 3 > > Implicit Feedback Mode: No > > Interface 1 > > Altset 4 > > Format: SPECIAL DSD_U32_BE > > Channels: 2 > > Endpoint: 0x01 (1 OUT) (ASYNC) > > Rates: 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000, > 705600, 768000 > > Data packet interval: 125 us > > Bits: 32 > > DSD raw: DOP=0, bitrev=0 > > Channel map: FL FR > > Sync Endpoint: 0x81 (1 IN) > > Sync EP Interface: 1 > > Sync EP Altset: 4 > > Implicit Feedback Mode: No > > > > Capture: > > Status: Stop > > Interface 2 > > Altset 1 > > Format: S16_LE > > Channels: 2 > > Endpoint: 0x82 (2 IN) (ASYNC) > > Rates: 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000, > 705600, 768000 > > Data packet interval: 125 us > > Bits: 16 > > Channel map: FL FR > > Interface 2 > > Altset 2 > > Format: S24_3LE > > Channels: 2 > > Endpoint: 0x82 (2 IN) (ASYNC) > > Rates: 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000, > 705600, 768000 > > Data packet interval: 125 us > > Bits: 24 > > Channel map: FL FR > > Interface 2 > > Altset 3 > > Format: S32_LE > > Channels: 2 > > Endpoint: 0x82 (2 IN) (ASYNC) > > Rates: 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000, > 705600, 768000 > > Data packet interval: 125 us > > Bits: 32 > > Channel map: FL FR > > Interface 2 > > Altset 4 > > Format: SPECIAL DSD_U32_BE > > Channels: 2 > > Endpoint: 0x82 (2 IN) (ASYNC) > > Rates: 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000, > 705600, 768000 > > Data packet interval: 125 us > > Bits: 32 > > DSD raw: DOP=0, bitrev=0 > > Channel map: FL FR > > > > cat /proc/asound/card*/stream0 > Comtrue-inc Comtrue-inc UAC2 Device EVM-GB at usb-0000:00:14.0-5, high speed : USB Audio > > Playback: > Status: Stop > Interface 1 > Altset 1 > Format: S16_LE > Channels: 2 > Endpoint: 0x01 (1 OUT) (ASYNC) > Rates: 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000, 705600, 768000 > Data packet interval: 125 us > Bits: 16 > Channel map: FL FR > Sync Endpoint: 0x81 (1 IN) > Sync EP Interface: 1 > Sync EP Altset: 1 > Implicit Feedback Mode: No > Interface 1 > Altset 2 > Format: S24_3LE > Channels: 2 > Endpoint: 0x01 (1 OUT) (ASYNC) > Rates: 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000, 705600, 768000 > Data packet interval: 125 us > Bits: 24 > Channel map: FL FR > Sync Endpoint: 0x81 (1 IN) > Sync EP Interface: 1 > Sync EP Altset: 2 > Implicit Feedback Mode: No > Interface 1 > Altset 3 > Format: S32_LE > Channels: 2 > Endpoint: 0x01 (1 OUT) (ASYNC) > Rates: 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000, 705600, 768000 > Data packet interval: 125 us > Bits: 32 > Channel map: FL FR > Sync Endpoint: 0x81 (1 IN) > Sync EP Interface: 1 > Sync EP Altset: 3 > Implicit Feedback Mode: No > Interface 1 > Altset 4 > Format: SPECIAL DSD_U32_BE > Channels: 2 > Endpoint: 0x01 (1 OUT) (ASYNC) > Rates: 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000, 705600, 768000 > Data packet interval: 125 us > Bits: 32 > DSD raw: DOP=0, bitrev=0 > Channel map: FL FR > Sync Endpoint: 0x81 (1 IN) > Sync EP Interface: 1 > Sync EP Altset: 4 > Implicit Feedback Mode: No > > Capture: > Status: Stop > Interface 2 > Altset 1 > Format: S16_LE > Channels: 2 > Endpoint: 0x82 (2 IN) (ASYNC) > Rates: 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000, 705600, 768000 > Data packet interval: 125 us > Bits: 16 > Channel map: FL FR > Interface 2 > Altset 2 > Format: S24_3LE > Channels: 2 > Endpoint: 0x82 (2 IN) (ASYNC) > Rates: 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000, 705600, 768000 > Data packet interval: 125 us > Bits: 24 > Channel map: FL FR > Interface 2 > Altset 3 > Format: S32_LE > Channels: 2 > Endpoint: 0x82 (2 IN) (ASYNC) > Rates: 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000, 705600, 768000 > Data packet interval: 125 us > Bits: 32 > Channel map: FL FR > Interface 2 > Altset 4 > Format: SPECIAL DSD_U32_BE > Channels: 2 > Endpoint: 0x82 (2 IN) (ASYNC) > Rates: 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000, 705600, 768000 > Data packet interval: 125 us > Bits: 32 > DSD raw: DOP=0, bitrev=0 > Channel map: FL FR >
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