The USB DAC from LH Labs (2522:0007) seems requiring the same quirk as Sony Walkman to set up the interface like UAC1; otherwise it gets the constant errors "usb_set_interface failed (-71)". This patch adds a quirk entry for addressing the buggy behavior.

Reported-by: Lennert Van Alboom lennert@vanalboom.org Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/T3VPXtCc4uFws9Gfh2RjX6OdwM1RqfC6VqQr--_LMDyB2x5N3p... Signed-off-by: Takashi Iwai tiwai@suse.de --- sound/usb/quirks.c | 2 ++ 1 file changed, 2 insertions(+)

diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c index 168fd802d70b..9bfead5efc4c 100644 --- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -1903,6 +1903,8 @@ static const struct usb_audio_quirk_flags_table quirk_flags_table[] = { QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER), DEVICE_FLG(0x21b4, 0x0081, /* AudioQuest DragonFly */ QUIRK_FLAG_GET_SAMPLE_RATE), + DEVICE_FLG(0x2522, 0x0007, /* LH Labs Geek Out HD Audio 1V5 */ + QUIRK_FLAG_SET_IFACE_FIRST), DEVICE_FLG(0x2708, 0x0002, /* Audient iD14 */ QUIRK_FLAG_IGNORE_CTL_ERROR), DEVICE_FLG(0x2912, 0x30c8, /* Audioengine D1 */