ALSA: usb-audio: Add native DSD support for Cambridge Audio streamers

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The Cambridge Audio streamer advertises the UAC2 RAW_DATA format on
altsetting 2 of its playback interface, but without the DSD_RAW quirk
flag the driver exposes it only as a SPECIAL format that cannot be
used.

Add QUIRK_FLAG_DSD_RAW for the device (USB ID 22e8:ca10), so the
altsetting is exposed as DSD_U32_BE, enabling native DSD64/128/256
playback.

Tested with: gst-launch-1.0 filesrc location=file.dsf ! \
                            avdemux_dsf ! dsdconvert ! \
                            alsasink device=hw:2,0

Signed-off-by: Matus Gajdos <matuszpd@gmail.com>
Link: https://patch.msgid.link/20261002125237.82188-1-matuszpd@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>

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Matus Gajdos 2026-10-02 14:52:37 +02:00 • committed by Takashi Iwai

parent b4e7fc36e3

commit 4e1462e7cd

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sound/usb/quirks.c

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