From: Eric Wong <normalperson@yhbt.net>
Date: Sat, 30 May 2015 09:15:39 +0000 (+0000)
Subject: ALSA: usb-audio: don't try to get Outlaw RR2150 sample rate
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=2f80b2958abe5658000d5ad9b45a36ecf879666e;p=linux-beck.git

ALSA: usb-audio: don't try to get Outlaw RR2150 sample rate

This quirk allows us to avoid the noisy:

	current rate 0 is different from the runtime rate

message every time playback starts.  While USB DAC in the RR2150
supports reading the sample rate, it never returns a sample rate
other than zero in my observation with common sample rates.

Signed-off-by: Eric Wong <normalperson@yhbt.net>
Cc: Joe Turner <joe@oampo.co.uk>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---

diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index 29175346cc4f..b8c97d092a47 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -1120,6 +1120,7 @@ bool snd_usb_get_sample_rate_quirk(struct snd_usb_audio *chip)
 	case USB_ID(0x045E, 0x0772): /* MS Lifecam Studio */
 	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) */
 		return true;
 	}
 	return false;