ALSA: usb-audio: Fix TEAC UD-501/UD-503/NT-503 usb delay (5a4ff9ec) · Commits · 戴 / test

TEAC UD-501/UD-503/NT-503 fail to switch properly between different rate/format. Similar to 'Playback Design', this patch corrects the invalid clock source error for TEAC products and avoids complete freeze of the usb interface of 503 series. Signed-off-by:

Guillaume Fougnies <guillaume@eulerian.com> Cc: <stable@vger.kernel.org> Signed-off-by:

Takashi Iwai <tiwai@suse.de>

sound/usb/quirks.c

+13 −1

Original line number	Diff line number	Diff line
		@@ -1205,8 +1205,12 @@ void snd_usb_set_interface_quirk(struct usb_device *dev)
		* "Playback Design" products need a 50ms delay after setting the
		* USB interface.
		*/
		if (le16_to_cpu(dev->descriptor.idVendor) == 0x23ba)
		switch (le16_to_cpu(dev->descriptor.idVendor)) {
		case 0x23ba: /* Playback Design */
		case 0x0644: /* TEAC Corp. */
		mdelay(50);
		break;
		}
		}

		void snd_usb_ctl_msg_quirk(struct usb_device *dev, unsigned int pipe,
		@@ -1221,6 +1225,14 @@ void snd_usb_ctl_msg_quirk(struct usb_device *dev, unsigned int pipe,
		(requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS)
		mdelay(20);

		/*
		* "TEAC Corp." products need a 20ms delay after each
		* class compliant request
		*/
		if ((le16_to_cpu(dev->descriptor.idVendor) == 0x0644) &&
		(requesttype & USB_TYPE_MASK) == USB_TYPE_CLASS)
		mdelay(20);

		/* Marantz/Denon devices with USB DAC functionality need a delay
		* after each class compliant request
		*/

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