[alsa-devel] [PATCH 08/11] ALSA: bebob: expand timeout for DM1500 quirk

Takashi Sakamoto o-takashi at sakamocchi.jp
Sun Jun 14 05:49:34 CEST 2015


Behringer FCA610 and UFX1604 is confirmed to require more time till
transmitting packets after establishing connections. This seems to
be a quirk of DM1500 ASIC which ArchWave produced.

For this quirk, this commit extends the time to wait up to 2 seconds.
As a result, in worst cases, below userspace functions require 2 seconds
to return.
 - snd_pcm_prepare()
 - snd_pcm_hw_params()
 - snd_pcm_recover()

Tested-by: Kim Tore Jensen <kim at incendio.no>
Signed-off-by: Takashi Sakamoto <o-takashi at sakamocchi.jp>
---
 sound/firewire/bebob/bebob_stream.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/firewire/bebob/bebob_stream.c b/sound/firewire/bebob/bebob_stream.c
index 5335c30..9c810f9 100644
--- a/sound/firewire/bebob/bebob_stream.c
+++ b/sound/firewire/bebob/bebob_stream.c
@@ -8,7 +8,7 @@
 
 #include "./bebob.h"
 
-#define CALLBACK_TIMEOUT	1000
+#define CALLBACK_TIMEOUT	2000
 #define FW_ISO_RESOURCE_DELAY	1000
 
 /*
-- 
2.1.4



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