From 7de76b2d4d597b6984567e66208c9c0268ceaac9 Mon Sep 17 00:00:00 2001 From: Mike Lockwood Date: Thu, 14 Aug 2014 09:34:54 -0700 Subject: [PATCH] Quick hack fix for USB accessory audio support tinyalsa fails to retrieve the correct value for the period count from the f_audio_source driver and tries to use zero instead. This wasn't a problem before because the usb audio HAL used hard coded values that were compatible with the driver. Bug: 16799652 Change-Id: I6f5b907a0699c58b071e9f419ed8e053a7d9dc77 --- modules/usbaudio/alsa_device_proxy.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/modules/usbaudio/alsa_device_proxy.c b/modules/usbaudio/alsa_device_proxy.c index 63a27e70..e15f093c 100644 --- a/modules/usbaudio/alsa_device_proxy.c +++ b/modules/usbaudio/alsa_device_proxy.c @@ -66,6 +66,13 @@ void proxy_prepare(alsa_device_proxy * proxy, alsa_device_profile* profile, proxy->alsa_config.period_size = profile_get_period_size(proxy->profile, proxy->alsa_config.rate); + // Hack for USB accessory audio. + // Here we set the correct value for period_count if tinyalsa fails to get it from the + // f_audio_source driver. + if (proxy->alsa_config.period_count == 0) { + proxy->alsa_config.period_count = 4; + } + proxy->pcm = NULL; }