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

From: Eric Wong
Date: Sat May 30 2015 - 05:16:32 EST


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@xxxxxxxx>
Cc: Joe Turner <joe@xxxxxxxxxxx>
Cc: Takashi Iwai <tiwai@xxxxxxx>
---
sound/usb/quirks.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index 32631a8..2ea5b33 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -1118,6 +1118,7 @@ bool snd_usb_get_sample_rate_quirk(struct snd_usb_audio *chip)
case USB_ID(0x045E, 0x075D): /* MS Lifecam Cinema */
case USB_ID(0x045E, 0x076D): /* MS Lifecam HD-5000 */
case USB_ID(0x04D8, 0xFEEA): /* Benchmark DAC1 Pre */
+ case USB_ID(0x074D, 0x3553): /* Outlaw RR2150 (Micronas UAC3553B) */
return true;
}
return false;
--
EW

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/