[PATCH 4.1 030/127] ALSA: usb-audio: Add sample rate inquiry quirk for AudioQuest DragonFly

[Greg Kroah-Hartman]

4.1-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Anssi Hannula <anssi.hannula@xxxxxx>

commit 12a6116e66695a728bcb9616416c508ce9c051a1 upstream.

Avoid getting sample rate on AudioQuest DragonFly as it is unsupported
and causes noisy "cannot get freq at ep 0x1" messages when playback
starts.

Signed-off-by: Anssi Hannula <anssi.hannula@xxxxxx>
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 sound/usb/quirks.c |    1 +
 1 file changed, 1 insertion(+)

--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -1122,6 +1122,7 @@ bool snd_usb_get_sample_rate_quirk(struc
 	case USB_ID(0x045E, 0x0779): /* MS Lifecam HD-3000 */
 	case USB_ID(0x04D8, 0xFEEA): /* Benchmark DAC1 Pre */
 	case USB_ID(0x074D, 0x3553): /* Outlaw RR2150 (Micronas UAC3553B) */
+	case USB_ID(0x21B4, 0x0081): /* AudioQuest DragonFly */
 		return true;
 	}
 	return false;