Author: hselasky
Date: Tue Mar 24 09:21:53 2015
New Revision: 280429
URL: https://svnweb.freebsd.org/changeset/base/280429
Log:
Use the feedback value from the synchronization endpoint as fallback
when there is no recording channel.
MFC after: 3 days
PR: 198444
Modified:
head/sys/dev/sound/usb/uaudio.c
Modified: head/sys/dev/sound/usb/uaudio.c
==============================================================================
--- head/sys/dev/sound/usb/uaudio.c Tue Mar 24 08:27:01 2015
(r280428)
+++ head/sys/dev/sound/usb/uaudio.c Tue Mar 24 09:21:53 2015
(r280429)
@@ -2026,6 +2026,13 @@ uaudio_chan_play_sync_callback(struct us
DPRINTF("Comparing %d Hz :: %d Hz\n",
(int)temp, (int)sample_rate);
+ /*
+ * Use feedback value as fallback when there is no
+ * recording channel:
+ */
+ if (ch->priv_sc->sc_rec_chan.num_alt == 0)
+ ch->jitter_curr = temp - sample_rate;
+
ch->feedback_rate = temp;
break;
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