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Sun, 04 Oct 2026 11:46:37 -0700 (PDT) Received: from jjj-x570pro4 ([2a01:e0a:9d5:4a60:d60f:fd1a:fad6:a587]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-48c57d927cdsm4988765f8f.6.2026.10.04.11.46.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 04 Oct 2026 11:46:37 -0700 (PDT) From: Justin Bacle To: Takashi Iwai , Jaroslav Kysela Cc: linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org, Justin Bacle Subject: [PATCH] ALSA: usb-audio: add sample-rate quirk for Yamaha 01V96i Date: Sun, 4 Oct 2026 20:44:45 +0200 Message-ID: <20261004184618.56779-1-justin.bacle@gmail.com> X-Mailer: git-send-email 2.53.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Signed-off-by: Justin Bacle --- sound/usb/quirks.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c index 6176acc04..9a5ea295e 100644 --- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -2332,6 +2332,21 @@ void snd_usb_audioformat_attributes_quirk(struct snd_usb_audio *chip, int stream) { switch (chip->usb_id) { + case USB_ID(0x0499, 0x5500): /* Yamaha 01V96i */ + /* + * The 01V96i declares its audio streaming interfaces as + * vendor-specific (class 0xff) and provides no class-specific + * endpoint descriptor. parse_uac_endpoint_attributes() therefore + * returns no attributes, and the driver never issues the SET_CUR + * sampling-frequency request the hardware needs to engage its USB + * stream: playback and capture PCMs report RUNNING, but the desk + * passes no audio. + * + * Force the attribute on so the stream is initialised the same way + * the Windows driver does it. + */ + fp->attributes |= UAC_EP_CS_ATTR_SAMPLE_RATE; + break; case USB_ID(0x0a92, 0x0053): /* AudioTrak Optoplay */ /* Optoplay sets the sample rate attribute although * it seems not supporting it in fact. -- 2.53.0