linux-kernel - [PATCH 1/2] sound: usb: enable DSD output for ddHiFi TC44C

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Message-ID: <20241204151954.658897-1-adrian.ratiu@collabora.com>
Date: Wed,  4 Dec 2024 17:19:53 +0200
From: Adrian Ratiu <adrian.ratiu@...labora.com>
To: Takashi Iwai <tiwai@...e.com>,
	Jaroslav Kysela <perex@...ex.cz>
Cc: linux-sound@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	kernel@...labora.com,
	Adrian Ratiu <adrian.ratiu@...labora.com>
Subject: [PATCH 1/2] sound: usb: enable DSD output for ddHiFi TC44C

This is a UAC 2 DAC capable of raw DSD on intf 2 alt 4:

Bus 007 Device 004: ID 262a:9302 SAVITECH Corp. TC44C
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass          239 Miscellaneous Device
  bDeviceSubClass         2 [unknown]
  bDeviceProtocol         1 Interface Association
  bMaxPacketSize0        64
  idVendor           0x262a SAVITECH Corp.
  idProduct          0x9302 TC44C
  bcdDevice            0.01
  iManufacturer           1 DDHIFI
  iProduct                2 TC44C
  iSerial                 6 5000000001
.......
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        2
      bAlternateSetting       4
      bNumEndpoints           2
      bInterfaceClass         1 Audio
      bInterfaceSubClass      2 Streaming
      bInterfaceProtocol      32
      iInterface              0
	AudioStreaming Interface Descriptor:
          bLength                16
          bDescriptorType        36
          bDescriptorSubtype     1 (AS_GENERAL)
          bTerminalLink          3
          bmControls             0x00
          bFormatType            1
          bmFormats              0x80000000
          bNrChannels            2
          bmChannelConfig        0x00000000
          iChannelNames          0
.......

Signed-off-by: Adrian Ratiu <adrian.ratiu@...labora.com>
---
 sound/usb/quirks.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index 00101875d9a8..4897d7de7529 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -2265,6 +2265,8 @@ static const struct usb_audio_quirk_flags_table quirk_flags_table[] = {
 		   QUIRK_FLAG_ITF_USB_DSD_DAC | QUIRK_FLAG_CTL_MSG_DELAY),
 	DEVICE_FLG(0x154e, 0x300b, /* Marantz SA-KI RUBY / SA-12 */
 		   QUIRK_FLAG_DSD_RAW),
+	DEVICE_FLG(0x262a, 0x9302, /* ddHiFi TC44C */
+		   QUIRK_FLAG_DSD_RAW),
 	DEVICE_FLG(0x154e, 0x500e, /* Denon DN-X1600 */
 		   QUIRK_FLAG_IGNORE_CLOCK_SOURCE),
 	DEVICE_FLG(0x1686, 0x00dd, /* Zoom R16/24 */
-- 
2.45.2