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 !

===========================

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.)

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